JP2003047307A - Seed bed, method for producing the same and method for seeding - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seed bed assisting the root system of an introduced tree in becoming long and deep as in the case of the root system of a natural tree, promoting germination and initial growth, reducing the withering and damage of a young tree due to drying and enabling the whole year construction which cannot be carried out by planting. SOLUTION: A columnar material having a suitable length is molded from a water-resistant vegetational base material containing a fertilizer component and having water holding and water drainage properties. Holes passing through the columnar material in the vertical directions are bored in one or a suitable number of sites. Seeds are filled in the holes passing through the columnar material in the vertical directions to provide the seed bed.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a seed bed, a method for producing the same, and a seeding method using the same. The present invention specifically belongs to a greening technology aiming at greening a degraded land, and further, in order to prevent desertification due to global warming currently in progress on a global scale, in particular, a dry degraded land Belongs to the field of greening technology with the aim of greening trees. In other words, it aims to create a forest having a function similar to that of a natural forest that is effective for CO ₂ absorption in a degraded land, particularly in a dry degraded land, which is a global environment conservation technology. This is a technology for tree planting by "planting a seed bed" as if to plant a seedling.

[0002]

2. Description of the Related Art The greening technology for conservation of the global environment that is currently being practiced is planting seedlings, which is carried out only in the tropical to subtropical regions where rainfall is large, and is not carried out in dry and degraded land. This is because the trees that have been planted grow well in areas where there is a large amount of rainfall, and it is possible to efficiently grow and collect wood that is useful as a building material and as a raw material for papermaking. Also, there are many favorable site conditions for growth, and commercial afforestation is established. However, when planting saplings, water management is necessary after planting in a dry and degraded land, and this must be continued for many years, and it is economically unprofitable due to the limited construction period. In addition, due to many failures and poor growth, the present situation is that no greening has been carried out in the arid degraded land for the purpose of conservation of the global environment.

In order to restore a degraded global environment, not only commercial tropical rain forest planting and planting but also greening in a degraded dry land is a very important issue. Particularly in drought-free arid areas, many people are starving due to drought, and greening for poverty relief and maintenance / preservation of the living environment has become a very urgent issue.

However, no technique has been found for creating forests in dry and degraded land. Forests in arid and degraded areas can survive if their root system is close to that of natural forests, but planted trees have short root systems and have a narrow water absorption range, so they can be easily dried. Therefore, irrigation must be performed to prevent dry mortality, but since there is no water, irrigation requires a huge cost. Further, when a large amount of water is irrigated, there is a problem that salt is accumulated and the salt dies.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a seed bed which can solve the following problems. (1) The root system of the introduced tree is like that of a natural tree,
Grant to be long and deep. (2) To promote germination and early growth, and reduce the death of seedlings due to drying.
(3) To enable year-round construction that cannot be done by planting.

[0006]

According to the present invention, a water-repellent vegetation base material containing a fertilizer component and having water retention and drainage is formed, and one or a suitable number of holes are formed in the longitudinal direction. A seed bed is provided, in which a columnar body having an appropriate length provided at a position is filled with seeds in the hole penetrating in the longitudinal direction.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention was developed from the following viewpoints. (1) In order to elongate the root system of a tree like a root system of a natural tree, a seed bed was created in consideration of growing from seeds instead of planting. (2) We devised a seed bed that has favorable conditions for germination and growth so that it can be established even in thin, degraded land. (3) The seed bed was pierced in the longitudinal direction so that the root system deeply and smoothly extends into the ground like the root system of a natural tree. This hole confirmed that the root system penetrates deep into the ground without swirling. (4) In order to promote germination / early growth and reduce mortality of seedlings due to drying, materials preferable for enhancing water retention were mixed. In addition, fertilizer was mixed to promote initial growth. (5) In order to enable a year-round construction that cannot be done by planting, if a seed bed containing several seeds is buried in the field, the seeds will not germinate until the environment becomes suitable for germination and growth. To maintain. And the types that have reached the appropriate time of germination
The activity begins with seeds. In other words, there is an advantage that several kinds of trees suitable for the site conditions on the spot germinate and grow by mixing several kinds of seeds. Also, mixing several seeds is very advantageous for creating highly diverse communities.

The seed bed of the present invention is made of a water-resistant vegetation base material containing a fertilizer component and having water retention and drainage. It can be produced by forming a columnar piece having a length, drying the columnar article, and filling seeds in the holes penetrating in the longitudinal direction.

The above-mentioned vegetation base material is agglomerated by adding and stirring viscous soil, organic material, fertilizer, binder, an appropriate amount of water and an aggregating agent (polymer aggregating agent) necessary for the growth of vegetation. Manufactured. Using this as a base material for a seed bed, a columnar seed bed having through holes in the vertical direction at one to several places is pressure-molded to form a columnar product, and then dried. A seed bed filled with one or several kinds of seeds together with a water retaining material is bored in a hole penetrating in the vertical direction on a construction surface, which is a target site for greening, and buried.
That is, "planting the seed bed" promotes germination and initial growth of the sown tree, and promotes the establishment of tree species suitable for the local vegetation environment, so that the certainty of tree establishment can be increased. As seeds, it is preferable to use several seeds having different germination periods. This is because in such a case, the activity starts from the kind / seed that has reached an appropriate period of germination, and several kinds of trees suitable for the locational conditions on the spot can be successively sprouted and grown.

Cohesive soil is a material that has fertilizer retention, water retention (water stickiness), and air permeability and is necessary for plant growth. There is no particular limitation, but clay-based soil near the construction site, Or, dredged soils such as rivers, lakes and dams, natural soils and sludges such as quarry plant sludge, water purification plant sludge, and mineral clay components such as zeolite, bentonite, and attapulgite can be used alone or in combination. . Cohesive soil is a skeletal component of the present invention, and it is desirable to use natural soil or sludge as the main component, and it is used in the vegetation base material at about 80 to 95% by weight (dry weight basis), and has fertilizing properties, Mineral clay component is about 0.3 to 2% by weight in the vegetation base material to ensure water permeability.
(On a dry weight basis). Cohesive soil is aggregated with a polymer flocculant together with other materials, and imparts water retention (water retention), water permeability (drainage), air permeability and water resistance to the vegetation base material.

The organic material is not particularly limited and may be a material available near the construction site. Specifically, organic compost, plant residues such as rice straw, bark and its beaten products, peat moss, coco peat, coconut fiber, etc. can be used, and synthetic, artificial fibers such as polyester, nylon, vinylon, acetate, cupra, etc. can also be used. . These organic materials are used in the vegetation base material in an amount of about 3-10% by weight.

The vegetation base material, which is made by aggregating cohesive soil, organic material, and the like to provide water permeability, water retention and air permeability, is formed into a cylindrical shape having a through hole. After molding, a binder is added in order to maintain its shape or further improve water resistance. Binders that can be used include starch binders, carboxymethyl cellulose compounds, hydrophilic binders such as polyvinyl alcohol compounds, polyvinyl acetate and its copolymers, acrylic polymers and their copolymers, natural and synthetic rubbers. And hydrophobic binders such as asphalt emulsions. These binders are
Generally, after the seed bed is formed and dried, the shape of the vegetation base material can be retained due to its film forming property and bonding property, and the vegetation base material is provided with water resistance, so that It has the function of preventing disintegration due to immersion in water. Among the above binders, the hydrophilic binder improves the water retention of the vegetation base material and is therefore particularly advantageous in the construction of the seed bed in a dry place. On the other hand, since the hydrophobic binder improves the water resistance of the vegetation base material, it is possible to prevent the seed bed from collapsing due to the immersion in water due to rainfall water or the like. The amount of the binder mixed is determined in consideration of the amount of rainfall and the amount of spring water in the construction site, but it is usually used in the vegetation base material at 0.3 to 3% by weight (dry weight basis).

Further, in the present invention, in order to improve water permeability, water retention and air permeability, the vegetation base material is obtained by agglomerating. A polymer flocculant is used as the agglomerating agent, and for example, trade name Sun Flock (manufactured by Sanyo Kasei Co., Ltd.), trade name Hiset (manufactured by Daiichi Kogyo Seiyaku), trade name Hymolok (made by Hymo), and trade name Sumifloc ( It can be used by appropriately selecting it from products such as Sumitomo Chemical Co., Ltd.). The mixing amount of the aggregating agent is about 0.1% by weight (dry weight basis) in the vegetation base material.

In the present invention, a superabsorbent polymer compound may be added in order to enhance the water retention capacity of the seed bed. Product name of Sun-Wet GT-
1, IM5000, IM1000 (manufactured by Sanyo Chemical Industries),
Product name Thermogel (made by Kojin), product name PNVA NA-
010 (manufactured by Showa Denko) and the like can be preferably used. The mixing amount in the vegetation base material depends on the water absorption capacity of each superabsorbent polymer compound, but is usually 0.01 to 0.1% by weight (dry weight basis).

Furthermore, depending on the construction site, it is usually appropriate to secure the initial nutrients necessary for plant growth,
For example, fertilizer components such as advanced chemical fertilizers, chemical fertilizers, slow-release fertilizers such as Green Map and Green Map II (manufactured by Japan Joint Fertilizer), coated fertilizer, and molten phosphorus fertilizer are added to the vegetation base material in appropriate amounts and mixed. It

The above materials are molded by the method described in detail below,
By drying, it has excellent water retention, water permeability and breathability,
In addition, it is possible to manufacture a seed bed having water resistance that does not easily lose its shape and does not collapse even if it encounters rainfall or the like.

The seed bed is provided with one or several through holes in its longitudinal direction (longitudinal direction). Tree seeds "planted from seed" in the through-hole, suitable mixing material, for example,
It is mixed and filled with a lightweight material that has water retention properties such as vermiculite and perlite. When the seeds are filled into the through holes at the construction site, the seeds and vermiculite or equivalent may be mixed and filled as clay juice for the purpose of supplying water. Seeds mixed and filled with vermiculite etc. in the through holes may be present in an environment suitable for germination because they are securely held in the through holes and the water is easily supplied to the seeds. I can. The seeds that have started to germinate can be easily germinated to the above-ground parts, even if the germination location is relatively deep, because they are lightweight and need only pass through a layer of vermiculite, etc., which has many voids. . Also, the roots easily grow,
You can root.

The shape of the seed bed having a through hole and the diameter of the through hole can be appropriately selected depending on the seed properties to be sown, the shape of the seed, the number of seeds, etc., but normally the diameter of the seed bed is 5 to 15 cm, and the height is 5 to 5. It is 20 cm, the diameter of the through holes is 1 to 3 cm, and 1 to 5 holes are provided. The upper and lower surfaces of a cylindrical seed bed filled with seeds have a germination / rooting property, for example, a film made of a water-soluble plastic such as polyvinyl alcohol, sodium polyacrylate, or polyvinylpyrrolidone, for example, trade name Hylocene (polyvinyl alcohol). From biodegradable plastics such as film (Nippon Gosei Kagaku), polylactic acid, fatty acid polyester, polycaprolactone, copolymer of β-hydroxybutyric acid and β-hydroxyvaleric acid, mixture of starch, polyvinyl alcohol and fatty acid polyester A film such as Bionore (trade name, Showa High Polymer), Matterby (trade name, manufactured by Nippon Synthetic Chemical Industry), LACEA (trade name, manufactured by Mitsui Chemicals Co., Ltd.), or water-disintegrating paper. Polymer compounds, eg polyvinyl alcohol, poly It may be coated with a resin such as ethylene glycol. This is because it is possible to prevent the seed layer in which the seeds are mixed from sliding off from the seed bed when the seed bed is transferred. Therefore, the sheet or resin coat having sprouting / rooting properties may be one that disappears early after construction.

Further, it is also preferable that the side surface of the seed bed has a protective film coated with a non-rooting film or the like or coated with a resin. This is to prevent the herbs from invading in an attempt to absorb the nutrients in the seed bed and inhibiting the germination and growth of tree seeds when the herbs are proliferating during construction. The non-rooting film, polyethylene, polypropylene, a general-purpose plastic film such as polyamide, and more preferably a biodegradable film, having a higher molecular weight than those used for the upper and lower surfaces of the seed bed, preferably a thick film, Examples of resin coating agents include polyvinyl acetate-based, polyacrylic acid-based, polyurethane-based coating agents, and emulsions of biodegradable plastics, for example, Matterby's emulsion (manufactured by Nippon Synthetic Chemical Industry) and fatty acid polyester emulsion. preferable. It is preferable that these films or resin coats are those that disappear and decompose after germination and after rooting (for example, after one year), because they do not inhibit the growth of trees.

The tree seeds packed in the seed bed in the present invention are:
There is no particular limitation, and seeds available on the market can be used, and further seeds that can be collected from the vicinity of the construction site can be used. Tree seeds, as appropriate, their dry resistance, moisture resistance,
It can be used in combination considering the properties such as heat resistance, cold resistance, negative resistance, positive resistance and tide resistance. In addition, it is desirable to select a pioneer tree as one of the combinations.

[0021] In one embodiment of the present invention, a seed bed having sheets or resin coats having germination / rooting properties provided on the upper and lower sides and a protective film on the side surfaces has a suitable spacing on the construction surface, for example, a grid of 100 cm. It is embedded in the planted hole which was dug up with the through hole up and down. At this time, one seed bed may be mixed and filled with seeds having several different properties at appropriate intervals and seeded, or one seed bed may be filled with one kind of seed, A plurality of seed beds each filled with different single seeds may be sown at an appropriate arrangement and at an appropriate interval. The planting holes should be deep enough to expose the upper part of the seed bed. When constructed with the greening technique according to this aspect of the present invention, first, when water is supplied to the seed bed fixed to the planting hole by rainfall, irrigation or the like, the seed bed has the germination and rooting ability that covers the upper and lower surfaces of the seed bed. The sheet or resin coat is dissolved and removed, and the seed bed is replenished with water. Since the seed bed has a high water retention capacity, it effectively retains the feed water and provides a suitable germination moisture environment for the seeds in the layer such as vermiculite. The seeds start to germinate after waiting for the temperature and environmental conditions suitable for germination. The germinated seeds have vermiculite, which has a light weight seed layer and many voids, so it is possible to easily grow the buds upward and the roots downward, and finally start germination and growth from the seed bed. To do. At this time, the seed bed itself is securely fixed in the planting holes and does not easily move due to wind, rainfall, etc., so that germination and growth failure due to the movement is unlikely to occur. By supplying an appropriate amount of initial nutrients contained in the seed bed, the seed beds are sown without being absorbed by the herbs because the side surface of the seed bed is covered with a protective film even if the herbs are present. Tree seeds
When grown from seeds, the main roots and supporting roots, which are peculiar to the case of growing from seeds, are steadily expanded, and the roots are sufficiently expanded to grow healthy.

The seed bed has a suitable water resistance and retains its shape without being affected by rainfall or the like for a certain period after emergence and rooting, that is, it has water permeability, water retention and air permeability. It keeps and germinates and grows properly, but because of root development,
With the decomposition of the protective film that prevented the invasion of herbaceous roots from the side, it is included in the rhizosphere by successive rooting. As described above, the greening technique according to the present invention, which is grown from seeds, is simple, does not require high-level management, and has sufficient rooting, and thus has a high probability of growing healthy into a mature tree.

The "planting seeds", the method of greening using the seed bed according to the present invention, can overcome the drawbacks of the conventional greening techniques used in afforestation and the like.

The seed bed of the present invention, the method for producing the same, and the seeding method using the seed bed will be described below with reference to the drawings. FIG. 1 is a perspective view of one embodiment of the seed bed of the present invention, FIG.
3 is a plan view thereof, and FIG. 3 is a sectional view thereof.
The seed bed 1 is provided with a hole 3 penetrating in the longitudinal direction of a pillar 2 formed from a vegetation base material. Seeds 4 are filled in the holes together with the water retaining material.

FIG. 4 shows a perspective view of a molding machine for producing the seed bed of the present invention. The molding machine 5 is composed of a molding machine 6 and an extrusion machine 7, and the extrusion machine 7 is assembled so as to move up and down in the molding machine 6. Figure 5
In the figure, a diagram showing a procedure of forming a pillar for a seed bed is shown. First, the aggregated vegetation base material 8 is put into a container, and the molding device 5 is inserted. Molding device 5 by inserting
The extruder 7 is lifted up and the aggregated vegetation base material 8 is pressure-filled into the shaper 6 (FIG. 5A). Next, as shown in FIGS. 5B to 5D, the vegetation base material 8 pressure-filled into the shaper 6 by taking out from the container and lowering the pusher 7 is taken out while maintaining its shape. You can It is dried to obtain pillars for the seed bed. A seed bed can be obtained by filling seeds in the thus obtained columnar material together with a water retaining material.

FIG. 6 is a diagram showing the procedure for sowing the seed bed of the present invention. First, a hole is dug in the construction site, and the seed bed is buried so that the hole 3 penetrating in the vertical direction is oriented in the direction perpendicular to the horizontal plane.

[0027]

EXAMPLES Examples will be described in detail below. Example 1 (1) Seed bed manufacturing method and seeding method (a) The materials used for the columnar products are as follows. Materials used: Crushed stone sludge (water content 30%) 60L Clay mineral (zeolite) 500g Plant fiber (bark beaten) 5000g Super absorbent resin (Sunwet GT-1) 50g Polymer flocculant (Sanflock AL210P) 100g Polyvinyl alcohol (Gothenol N-300) 500 g However, clay mineral (zeolite), vegetable fiber (bark beaten material), super absorbent resin (Sunwet GT-1), polymer flocculant (Sunflock AL210P) and polyvinyl alcohol (Gothenol N-300). -300) total amount is 30L
Is. An appropriate amount of water was added to the above material with a mortar mixer, and the mixture was agitated for several minutes to be aggregated. The aggregated base material loses fluidity and becomes easy to mold.

(B) Molding method: A columnar article was molded by the procedure shown in FIG. 5 using a molding machine as shown in FIG. The formed columnar article was cylindrical with a diameter of 10 cm and a height of 15 cm, and had four through holes with a diameter of 1.5 cm in the longitudinal direction. After drying the pillars produced by the above method, the through holes were filled with vermiculite and several kinds of tree seeds, and the top and bottom of the through holes were sealed with water-soluble paper, and A seed bed was obtained by coating a root-removing biodegradable plastic film.

(C) Seeding method: A seeding hole having a depth of 10 cm to 30 cm was dug, a seed bed was placed vertically in the center, and the soil was backfilled to the extent that the head of the seed bed was slightly exposed. The construction site was selected as an inclined land where seeds were expected to run off, but no erosion due to rainfall or runoff of the seed bed was observed, and germination grew smoothly. In addition, vigorous root system elongation was observed through the through holes in the seed bed to the ground,
It was confirmed that the root system of the introduced tree grows long and deep like the natural tree by installing the seed bed.

(2) Tree Growth Test by Direct Seeding to Seed Bed (a) Test Conditions (i) Test Seed Bed: The seed bed prepared as described above was used. (ii) Tree seeds: Vermiculite was mixed with 10 seeds of Japanese red pine, Yashabushi, and Japanese alder, and the seed beds were filled. Moreover, another oak was filled with three oak grains. (iii) Test site: Average slope of 35 degrees, Masa soil ground (iv) Sowing conditions: 100 seed beds were sown in a grid pattern at 1 m intervals. (V) Seeding time: May 1999

(B) Results As a result of a survey conducted in June 2001, the seed bed maintained its original shape without runoff due to rainfall, and the seed bed had 3 to 3
Five trees were sprouting and growing smoothly. The average height of each tree (average of 20 trees) is 25 cm for Japanese red pine and 9 for yashabushi.
It was 3cm, 109cm of Japanese alder, and 52cm of Quercus serrata, but the growth of each tree species was dominated by selected trees and selected trees depending on the location environment. The Japanese alder tree was dominant in the lower part of the slope and in the wet place, and the red pine and the yashabushi took precedence in the relatively dry part of the upper slope. Quercus was distributed in a wide range on average.
Next, when several trees grown on the seed bed were dug up and the extension state of the root system was examined, it was observed that the main root (vertical root) extended thickly and long through the through hole and invaded deep into the ground. It was It was confirmed that the root system in the control plot where the through hole was not drilled was thin and poorly developed, and the invasion of the root system into the natural ground was extremely less than that in the plot with the through hole.

Example 2 Regarding the elongation state of the root system after growth In this example, the effect of the present invention was confirmed by comparing it with a seedling planting method (forestation technology). The holes in the seed bed prepared in Example 1 were mixed with Vermiculite and filled with seeds of Yashabushi and Yamanoki. The depth of the seed bed filled with seeds is 20
The soil was covered to the extent that the embedded upper part was visible and hidden in the cm planting hole. The seed amount is 20 Yashabushi and 20 Yamahanoki per seed bed. On the other hand, the seedlings of Yashabushi and Yamanoki, which were raised in the nursery, were applied at a stage when two to three true leaves were developed, at the same time as sowing of the seedbed of the present invention in May 2011. Fertilizer components were also applied in the same amount as in the seed bed of the present invention, and 5 seedlings of Yashabushi and Scutellaria barbata were planted in each 20 cm deep planting hole. The seed bed section of the present invention and the seedling planting section were provided in 10 sections each and were randomly arranged. "Result": The root length and condition of the 15th month after construction were examined. Seed bed section of the present invention Seedling planting section Main root length Root system status Main root length Root system status (vertical root) (vertical root) Yashabushi 25 cm Thick vertical roots developed Main roots disappeared Short, shallow, alder trees 30 cm thick vertical roots developed main roots Loss: many fine roots, short, shallow. The root length is an average value of 10.

The days required for germination of seeds sown in the seed bed according to the present invention were 15 days for Yashabushi and 16 days for Yamanoki. The average height growth of Yashabushi in the sowing year is 15 cm, and the average height growth of Yamanoki is 18 cm.
The average tree height at the time of digging after 15 months is Yashabushi 4
It was 5 cm and Yamaha 55 cm. On the other hand, in the sapling planting area, a seedling with a height of 15 cm was used, but after planting 3
Almost no growth was seen for months, and the tree vigor recovered from late summer to early autumn. And the average tree height in the seedling planting area after 15 months is as follows: Yashabushi 53cm, Yamaha alder 59
It was cm. Fifteen months after construction, it was dug, the attached mud was washed and removed, and the condition of the roots was observed. As a result, in the root system of the seed bed section of the present invention, a main root (drooping root) serving as a supporting root supporting the above-ground portion of the tree was well developed, and a situation in which a thick and long root system invaded deep into the ground was observed. In particular, it was confirmed that the main root extended deeply in the vertical direction along the through hole opened in the seed bed, and had a root system structure extremely close to that of a natural tree.

On the other hand, the root system in the seedling planting section is caused by cutting of the root system or curling of the root system caused by planting the seedling.
It was observed that the morphology was completely different from the root system structure of natural trees. The biggest change in the root system is that the main root (drooping root), which is a supporting root that supports the above-ground part of the tree, has not been developed at all, and the main root has been lost. In addition, it is confirmed that the root system morphology is quite different from the root system structure of natural trees, such as the presence of many fine roots, but the roots are thin and short, the depth of invasion of the root system is shallow, and the extension range of the root system is narrow. Was done.

Example 3: Difference in establishment depending on construction time In general, germination and growth of seeds are said to be carried out in conformity with changes in natural conditions according to the unique physiological action of the seeds themselves. For example, if germination and growth conditions are not satisfied, life is maintained as seeds, but if the conditions are satisfied, the activity starts immediately. When a seed bed is used to convert the seeds into a forest, germination and growth are performed according to this natural flow. On the other hand, when seedlings are planted, there are few cases where the surrounding location conditions are satisfied from the time of planting, so the planting time and construction site are significantly limited. Therefore, we examined the effect of construction time on the establishment of trees.

1. Test method (a) Seed bed and seedling planting: The seed bed was prepared by the method of Example 1, and the same as in Example 2, seeds of Yashabushi and Yamanooki were packed together with vermiculite. For planting seedlings, seedlings with a height of 15 cm to 20 cm grown in a nursery for 1 year were used.

(B) Test section: A seed bed section and a seedling planting section were set up every 3 months and construction was carried out. The test started in March 1999 and ended in January 2000. 2. Results The following table shows the status of tree establishment in the seedbed and seedling planting areas. (1) Yashabushi Observed in June 2000 Observed in June 2001 Seedling of the present invention Seedling of the present invention Seedbed area Planting area Seedbed area Number of planted areas Number of trees Height of trees Number of trees Height of trees Tree height March 1999 Construction area 8 115 4 120 5 138 3 133 Construction area in May 1999 8 102 5 105 6 135 4 115 Construction area in July 1999 6 78 3 98 5 133 3 110 Construction area in September 1999 6 38 1 47 6 133 1 115 Construction area in November 1999 5 30 1 42 5 135 0 --- Construction area in January 2000 6 32 0 --- 6 138 0 --- In addition, the number "piece / seed bed", tree height ""cm" is the average value of 3 wards

(2) Yamanoki Observed in June 2000 Observed in June 2001 Seedlings of the present invention Seedlings of the present invention Seedbed plots Planting plots Seedbed plots Planting plots Number of trees Height of trees Number of trees Height of trees Number of trees March 1999 Construction area 9 110 4 123 8 147 3 135 May 1999 construction area 7 115 5 112 7 144 4 125 July 1999 construction area 7 87 3 98 6 145 3 130 September 1999 construction area 5 48 1 45 5 143 1 135 November 1999 construction area 5 37 1 35 5 146 0 --- January 2000 construction area 6 32 0 --6 139 0 --- In addition, the number "piece / seed bed", Tree height “cm” is the average value of 3 wards

[0039] According to the seedling planting method, seedlings die when planted in an inappropriate period, so it is understood that planting in an appropriate period is an essential condition for construction. It can be seen that in the "seed bed planting method" using a seed bed, the seeds physiologically select a suitable time for germination to germinate, and therefore the construction can be performed throughout the year.

Looking at the results of the observations of Yashabushi in June 2000, the average tree height in the construction area in July 1999 is 1
The tree height decreased in comparison with the construction area in May 1st year because it includes the tree height of young seedlings that sprouted in the next year. In addition, in the construction areas after September, all germination occurs after the winter season. When planting saplings, even if they are planted with due care not to damage the root system of the sapling, cutting of the root system, dry death of the roots, curling of the root system, etc. may occur, so the morphology of the root system is better than that of natural mature trees. Become extremely poor. In particular, there is a situation in which the roots are not elongated enough and the roots become thin and short. According to the seedling planting method, if transplanted in a timely manner, the tree height is higher than that of the seeded one to two years after construction, but there is a problem in the development of the root system, so it is likely that future growth will be suppressed. It is said.

In the various experiments conducted this time, when the seed bed was constructed on the grassland, the root system of the herbaceous plant invaded the seed bed, the growth of the herbage was improved, and the woody plant was overpressed. It was found that coating the side of the seed bed with a resin to form a non-rooting film can prevent the invasion of the root system of the herbaceous plant into the seed bed.

[0042]

EFFECTS OF THE INVENTION By using the seed bed of the present invention, (1) the root system of the introduced tree is promoted to be long and deep like the root system of a natural tree, (2) the germination / early growth is promoted, and drying is performed. It has the effects of reducing the death of seedlings and (3) enabling year-round construction that cannot be done by planting.

[Brief description of drawings]

FIG. 1 shows a perspective view of one embodiment of the seed bed of the present invention.

FIG. 2 shows a plan view of the seed bed of FIG.

FIG. 3 shows a sectional view of the seed bed of FIG.

FIG. 4 shows a perspective view of a molding machine for producing the seed bed of the present invention.

FIG. 5 shows a diagram showing the procedure for forming a pillar for a seed bed.

FIG. 6 is a diagram showing a procedure for sowing a seed bed of the present invention.

[Explanation of symbols]

1 ... Seed bed 2 ... Column 3 ... through hole 4 ... Seeds 5: Molding machine 6 ... Shaper 7 ... Extruder 8 ... Vegetation base material

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) A01G 9/10 A01G 9/10 DF term (reference) 2B022 BA01 BA02 BA03 BA05 BA12 BA13 BA14 BA16 BA18 BA21 BA23 BA25 BB05 DA19 2B027 NC05 NC13 NC14 NC24 NC26 NC27 NC32 NC41 NC43 NC56 SA15 SA28 VA11 2B051 AA01 AA02 AB01 AC01 AC02 BA02 BA06 BA07 CB08 CB10 CB30 CB34

Claims (8)

[Claims] 1. A suitable length which is formed from a water-resistant vegetation base material containing a fertilizer component and which has a water retention and drainage, and which is provided with one or a suitable number of vertical through holes. A seed bed, characterized in that the columnar article is filled with seeds in the holes penetrating in the longitudinal direction. 2. The seed bed according to claim 1, wherein a binder containing a hydrophilic binder is used as a binder for forming the columnar material. 3. The seed bed according to claim 1, wherein a binder containing a hydrophobic binder is used as a binder for forming the columnar material. 4. The seed bed according to any one of claims 1 to 3, which is filled with a water retaining material together with the seeds. 5. The sprouting / rooting sheet is attached to or coated on the upper and lower surfaces of the columnar article or coated with a sprouting / rooting resin, according to any one of claims 1 to 4. Seed bed. 6. The seed bed according to any one of claims 1 to 5, wherein a side surface of the columnar material is coated with a non-root-conducting film or a resin to form a protective film. 7. A columnar article having an appropriate length, using a water-resistant vegetation base material containing a fertilizer component and having water retention and drainage, with one or a suitable number of holes penetrating in the longitudinal direction. The method for producing a seed bed according to claim 1, further comprising a step of molding into a shape, a step of drying the columnar material, and a step of filling seeds in the holes penetrating in the longitudinal direction. 8. A hole is dug in a construction site, and the seed bed according to claim 1 is buried so that the hole penetrating in the vertical direction is oriented in a direction perpendicular to a horizontal plane. Characterizing seeding method.