JPH0221777B2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) This invention is used for growing seedlings with soil (also called bare seedlings) that do not have a protective film or protective side wall in the root zone of the seedlings, which are suitable for transplantation. This invention relates to a container for raising seedlings made of paper or a paper-like thin film.

(Prior art) Conventionally, a columnar pot body is formed from paper or a thin film such as paper, and this is used as a seedling-raising container for raising seedlings in soil, for example, in Japanese Patent Publication No. 49-9687 and Japanese Patent Publication No. 49-1989. -A water-soluble adhesive is used to form a columnar pot and arrange and attach individual pots, as in Japanese Patent Publication No. 56-33046. There have also been proposals for seedling-raising containers in which a columnar pot is formed into a square shape and many of the pots are glued together with a water-soluble adhesive, as disclosed in Japanese Patent Publication No. 56-49091. ing.

(Problems to be Solved by the Invention) In the above-mentioned conventionally known seedling-raising containers, after seedling-raising, the individual pot bodies and the water-soluble adhesive that adheres the individual pot bodies to each other do not require irrigation during seedling-raising. As the adhesive force has been lost, the original paper or paper-like thin film on the side walls forming the pot body has broken down into fragments, and when the seedlings are removed from the soil, these fragments are scattered, making it difficult to remove the seedlings. There were disadvantages such as making the work cumbersome and causing fragments to be scattered when the seedlings were placed directly on the transplanter and planted by the machine, causing problems in operation.

(Means for Solving the Problems) In view of the above circumstances, the present invention has been made to solve this inconvenience. In a seedling-raising container consisting of a large number of pot bodies with their outer walls attached to each other, the abutting portions or overlapping portions of both ends of paper or paper-like thin film strips forming each pot body are set in one direction. are arranged in the vertical and horizontal directions, and the side walls of the pot body adjacent to the abutting part or overlapping part are attached with a water-soluble adhesive, and the other adjacent pot bodies are attached with a water-resistant adhesive. Or also,
Between the side walls of the pot body adjacent to the abutting portions or overlapping portions at both ends in a direction that intersects the arrangement direction of the abutting portions or overlapping portions of paper or paper-like thin film strips forming each pot body. By using a seedling raising container in which the seeds are attached alternately on the left and right sides in the arrangement direction with a water-resistant adhesive, each row can be separated without fragmenting the paper or paper-like thin film that forms the pot body after raising the seedlings. It is possible to use a continuous piece or a continuous piece extending from the tip to the tail, and the above-mentioned disadvantages can be solved, leading to the present invention.

(Function) The paper or paper-like thin film used in this invention may be any material as long as it has appropriate corrosion resistance, and the material thereof is not particularly limited. Such rot-resistant thin films can be made, for example, by treating paper made from natural pulp made from various plant materials or waste paper with anti-corrosion chemicals, or by mixing natural pulp with various synthetic fibers. paper made from natural pulp or synthetic paper treated with a cellulose crosslinking agent, as well as various synthetic resin films,
Alternatively, natural pulp paper or synthetic paper whose surface has been treated with various synthetic resins may be used.

The seedling growing container of the present invention made from these thin films will be explained below with reference to the drawings.

Figures 1 to 5 explain the rectangular prism-shaped pot body, and Figures 6 to
Fig. 10 is a diagram explaining a hexagonal columnar pot body, where 1 is paper or a paper-like thin film having a width that is somewhat shorter or longer than the entire circumference of the pot body, and 2 is a virtual paper-like film with a constant interval. The virtual fold line 2 corresponds to the ridgeline 3 of the pot body, and the space between the virtual fold lines 2 corresponds to the side wall 4 of the pot body. 5a and 5b are both sides of the thin film 1,
By bending in one direction from the virtual fold line 2 and making both side parts 5a and 5b abut against each other as shown in the figure or overlap them, a columnar pot body 6 having a square or hexagonal shape in plan view is obtained. It is formed. In this case, in order to bring the both sides 5a and 5b into abutting state, the additive length of both sides 5a and 5b should be made somewhat shorter than the length between the imaginary folding lines 2 and 2, and the both sides 5a and 5b
To make a and 5b overlap, both sides 5a and 5b
What is necessary is to make the additive length slightly longer than the length between the imaginary fold lines 2 and 2. The abutting portion 7 or overlapping portion 8 of the pot body 6 thus formed is indicated by the arrow A.
In terms of directions, these are arranged vertically and horizontally, and both sides 5 of the abutting portions 7 or overlapping portions 8 adjacent to each other in the direction of the arrow A
A, 5b and the side wall 9 are pasted with a water-soluble adhesive 10, and a water-resistant adhesive 12 is pasted between the side walls 11, 11 adjacent to each other in the direction of arrow B. The configuration shown in FIGS. 11 and 12 is another example, and the rows of pot bodies 1 are located on both sides of the direction (for example, arrow B) that intersects the arrangement direction (for example, arrow A) of the abutting portions 7 or overlapping portions 8.
3, 14 between the abutting part 7 or overlapping part 8 and the side wall 9 of the adjacent pot body by replacing the adhesion with the water-soluble adhesive 10 with the adhesion with the water-resistant adhesive 12 alternately on the left and right sides. It is a container for raising seedlings.

The present invention is as described above, and the overlapping portion 8 may be attached with a water-soluble adhesive 10, or may be simply overlapped without being attached. Also, both sides 5
The spacing between a and 5b and the degree of overlap may be appropriately selected as long as they do not interfere with the structure of the seedling growing container. Furthermore, when a synthetic resin film or paper whose surface has been treated with synthetic resin is used as the thin film 1, the portion to which the water-resistant adhesive 12 is attached may be attached by thermal fusion.

When seedlings are grown in a conventional manner using the seedling growing container of the present invention constructed as described above, the adhesive force of the water-soluble adhesive at the attachment part disappears by the time the seedling raising is completed due to watering, and the seedlings become in a state where they can be peeled off. First, because there are
In the case of the seedling growing container shown in Figure 6, the thin membranes constituting the pot body of each stage are arranged in rows and separated, and the first
In the case of the seedling-raising containers shown in Figures 1 and 12, the seedlings separate in a continuous row from the tip to the tail, and then produce soil-grown seedlings whose rhizosphere is protected only by soil. Become. In this way, the thin film does not become fragmented and scattered, which not only makes the seedling picking work more efficient, but also makes it easier to clean up afterwards.

(Example) (1) Vinylon mixed kraft paper with a basis weight of 70 g/ ^m2 is continuously pulled out and cut into strips with a width of 135 mm.Then, the 15 mm width is folded back from one edge, and the 50 mm strip is cut from the other side.
Fold back the mm width to form a 〓-shaped compressed body with both sides abutted at intervals of 5 mm, and apply water-resistant adhesive to 8 of the compressed bodies on one side 35 mm wide, not including the abutted parts. Apply 95% solution of Movinyl #550,
The coated surface is brought together so that the 35 mm width of the back side including the abutting portion overlaps, and the whole is pressed and adhered to form a band-shaped body. This strip was cut into units with a length of 38 mm, and 16 of these units were stacked and arranged in a stacked manner with a width of 35 mm on one side not including the abutting portions being shifted, and water soluble was formed between each adjacent unit except for the 5 mm abutting interval. Adhesive Gohsenol GL-05-16
% solution and press the entire surface, and then adhere the cover to the top using a water-soluble adhesive in the same way. When this is unfolded after drying, a rectangular prismatic pot body with a height of 38mm and a side of 35mm with the abutting part in one direction is made with a length of 16mm.
To obtain a seedling growing container of the present invention arranged in tiers and 8 horizontal rows.

Lettuce seedlings (variety Olympia) were grown using the conventional method in this expanded seedling growing container, and when they had four true leaves, the vinylon mixed paper that formed the pot body of each stage was pulled out, and it was found that it was extremely easy to separate from the rhizosphere. After that, lettuce seedlings with soil were obtained which were pulled out in rows and the rhizosphere soil was hardly destroyed, and seedling harvesting and finishing work were done efficiently. The growth of the soil-attached seedlings thus obtained after transplanting was also extremely smooth.

(2) A chemical method in which kraft paper with a basis weight of 60 g/m ² is soaked in 5% dihydroxydimethylolethylene urea, dehumidified, and soaked for 3 minutes at a temperature of 170°C to crosslink cellulose and increase its wet strength. The modified paper is cut into strips 190 mm wide, then 50 mm wide is folded from one side edge, and 50 mm wide is folded back from the other side in the same way, resulting in a 10 mm width overlap on both sides. Form a body, arrange the 8 pieces of this pressed body so that the width of 30 mm on both sides overlaps alternately, and apply 95% solution of water-resistant adhesive Movinyl #550 between each lap to seal the entire body. Press and adhere to form a band-shaped body. This strip was cut into units with a length of 50 mm, 16 of these units were stacked with both sides aligned, and water-soluble adhesive Gohsenol GL-05 was applied between each adjacent unit except for a width of 30 mm on both sides of each layer unit. Apply a 16% solution and press the entire surface, and attach the cover to the top using water-soluble adhesive in the same way. When this is unfolded after drying, the height is 50 mm with the overlapping part in one direction.
To obtain a seedling growing container of the present invention having a shape in which hexagonal columnar pots each having a diameter of 60 mm are arranged in 16 vertical stages and 8 horizontal rows.

(3) Cut the chemically modified paper of Example (2) into a 145 mm wide strip, fold the 55 mm wide strip from one side edge, and cut it from the other side edge.
Fold the 20 mm width in the same way to form a square-shaped compressed body with both sides overlapping each other by 5 mm width, and fold 8 of these flattened bodies on one side without the overlapping part in the same manner as in Example (1). 35mm width water resistant adhesive Movinyl #550
A 95% solution of the above is applied, and the strips are sequentially arranged so that the 35 mm width of the back side including the overlapping portion overlaps on the coated surface, and the whole is pressed and adhered to form a band-shaped body. This strip was cut into units with a length of 38 mm, and 16 of these units were stacked and arranged one after the other with a width of 35 mm on one side not including the overlapping parts, and between each adjacent unit was applied water-soluble adhesive Gohsenol GL-05.
Apply a 16% solution of 16% and press the entire surface, and apply the above-mentioned water-soluble adhesive to the top in the same manner and paste the cover. When this is dried and unfolded, a seedling growing container of the present invention is obtained in which rectangular columnar pots each having a height of 38 mm and a side of 35 mm are arranged in 16 rows and 8 rows, with the overlapping portion in one direction.

(4) 176mm of vinylon mixed kraft paper from Example (1)
Cut it into a thin strip, fold the 43mm width from one side, and fold the 43mm width from the other side in the same way to form a 〓-shaped flattened body with a 4mm gap in the center and both edges abutted. . Place the 8 pieces of this flattened body on both sides.
Arrange the strips so that the 30 mm width wraps alternately, apply a 95% solution of the water-resistant adhesive Movinyl #550 between each wrap, and press the entire strip to form a strip. This strip was cut into units with a length of 50 mm, and 16 pieces of this unit were used as an example.
Arrange in a stacked manner as in (2), 30mm on both sides of each unit.
Water-soluble adhesive Gohsenol GL-05 was applied between each adjacent unit except for the width of the 4 mm width.
A 16% solution is applied and the whole is adhered by pressure, and the water-soluble adhesive is applied to the top in the same manner and the cover is adhered. When this is dried and expanded, a seedling growing container of the present invention is obtained in which hexagonal columnar pots each having a height of 50 mm and a diameter of 60 mm are arranged in 16 vertical rows and 8 horizontal rows with the abutting portion in one direction.

(5) 145mm of vinylon mixed kraft paper from Example (1)
Cut it into a narrow strip, fold back the 55mm width from one side edge, and fold back the 20mm width from the other side in the same way to form a cross-shaped flattened body with 5mm width overlap on both sides, and remove this overlapping part. Water-soluble adhesive Gohsenol
Attach with 16% solution of GL-05. Eight of the thus obtained pressed bodies were treated in the same manner as in Example (3) below, and the overlapping parts were pasted with a water-soluble adhesive and arranged in one direction. To obtain a seedling growing container of the present invention, which has square columnar pots each having a diameter of 35 mm and arranged in 16 rows vertically and 8 rows horizontally. Lettuce seedlings were raised in the same manner as in Example (1) using this seedling raising container, and when the thin film forming the pot body was pulled out after raising the seedlings, the adhesive at the overlapping part was sufficiently broken and the rows of drawers in each tier were removed. It was easy, and there was no soil collapse in the root zone of the seedlings.

(6) Using the chemically modified paper of Example (2), apply 16% of the water-soluble adhesive Gohsenol GL-05 to the overlapping part of the pressed body.
The process was carried out in the same manner as in Example (2) except that it was pasted with a liquid, and when it was dried and unfolded, the overlapping parts were pasted with a water-soluble adhesive and were arranged in one direction.Height 50 mm, diameter To obtain a seedling-growing container of the present invention in which 60 mm hexagonal columnar pots are arranged in 16 vertical stages and 8 horizontal rows.
Tobacco seedlings (variety: Bright Yellow) were grown in this container, and when the thin film from each stage was removed after the seedlings were raised, they were easily peeled off in rows without disturbing the rhizosphere soil.

(7) 16 pieces of the unit with a length of 38 mm in Example (1) were assembled on one side 35, not including the butt part, according to the procedure of Example (1).
When applying a 16% solution of the water-soluble adhesive Gohsenol GL-05, except for the butt interval of 5 mm between adjacent units, which are stacked and arranged in a stacked manner with the width of the unit being shifted sequentially.
A 95% solution of the water-resistant adhesive Movinyl #550 is applied alternately to the left and right of each layer in a 15-mm-wide area from the edge of the 50-mm-wide folded pieces located at the abutting portions of the strips located on both sides of each unit. After applying adhesive, it was treated in the same manner as in Example (1), and after drying, it was unfolded to form rectangular prism-shaped pots with a height of 38 mm and a side of 35 mm arranged in 16 rows vertically and 8 rows horizontally. To obtain a seedling growing container of the present invention which is unidirectional and in which the outer sides of the folded side parts of the pot bodies located on both sides are water-proofly stuck to the adjacent pot body side walls alternately on the left and right sides. Chinese cabbage (variety Victoria) was sown in this seedling-growing container, and after raising the seedlings for 30 days, one end of the thin film forming the pot body was pulled out, and the seedlings were connected in a row from the tip to the tail without disturbing the rhizosphere soil. The transplantation efficiency was significantly improved.

(8) 16 units of 50 mm length in Example (2) were stacked and arranged with both sides aligned according to the procedure of Example (2),
16 of water-soluble adhesive GOHSENOL GL-05 between adjacent units excluding 30mm width on both sides of each layer unit.
% solution, apply water-resistant adhesive Movinyl #550-95 to the overlapping part of the strips located on both sides of each unit in a 20 mm width inward from the folded position on the upper side of the fold, alternating left and right for each layer.
The above-mentioned water-soluble adhesive was applied except for applying the % solution, and the same process as in Example (2) was carried out. After drying, the hexagonal columnar pot with a height of 50 mm and a diameter of 60 mm was formed into a hexagonal columnar pot with a length of 16 mm. The pots of the present invention are arranged in rows and eight horizontal rows, with the overlapping portions in one direction, and the upper portions of the overlapping portions of the pots located on both sides are waterproof attached to the side walls of the adjacent pots alternately on the left and right. Obtain a seedling growing container. Potatoes (variety: Toyoshiro) in this seedling container
After raising the seedlings for 25 days, the thin membrane forming the pot body was pulled out from one end and could be removed in a continuous row without disturbing the rhizosphere soil of the seedlings.

(9) In the pressed body formed using the chemically modified paper of Example (2), the folded sides on both sides were adhered with a 16% solution of the water-soluble adhesive Gohsenol GL-05. A unit with a length of 50 mm made in the manner described in Example (2) was treated in the same manner as in Example (8) below, and when it was dried and unfolded, a hexagonal columnar pot with a height of 50 mm and a diameter of 60 mm was formed with 16 vertical and horizontal steps. They are arranged in eight rows, and the overlapping parts are pasted with water-soluble adhesive to form one direction.
In addition, as in Example (7), the seedling growing container of the present invention is obtained, in which the upper parts of the overlapping parts of the pot bodies on both sides are waterproofly attached to the side walls of the adjacent pot bodies in alternating right and left directions.

(Effects) When using the seedling raising container of this invention for raising plant seedlings,
Part of the side wall of each pot is dismantled by watering during seedling cultivation, and water-proof adhesive is attached between adjacent pots in each tier, or the pots are placed on both sides in this way. Since the pot bodies are connected in a meandering pattern with water-resistant adhesives alternately on the left and right sides, after seedlings are raised, the thin film that forms the pot body can be applied in rows or in continuous rows without disturbing the rhizosphere soil of the seedlings. Since it is possible to take out the seedlings in a solid state, bare seedlings with soil can be easily obtained, and the treatment of remaining thin film at the time of transplanting is simplified, which significantly contributes to improving agricultural work.

[Brief explanation of drawings]

Fig. 1 is a diagram illustrating an embodiment of the present invention (individual pots are square prism-shaped), Fig. 2 is a rectangular prism-shaped pot with an abutting portion, and Fig. 3 is a strip forming the structure shown in Fig. 2. , FIG. 4 shows a rectangular prism shaped pot with overlapping parts, FIG. 5 shows a strip forming the part shown in FIG. 4, and FIG. 6 explains another embodiment of the present invention (each pot has a hexagonal prism shape). The drawings, FIG. 7 shows a hexagonal columnar pot body with an abutting part, FIG. 8 shows a strip forming the part shown in FIG. 7, FIG. 9 shows a hexagonal columnar pot body with an overlapping part, and FIG. FIGS. 11 and 12 are drawings illustrating further examples of the formed strips. 1... thin film, 5a, 5b... folded both sides,
6... Pot body, 7... Butt part, 8... Overlapping part,
10... Water-soluble adhesive, 12... Water-resistant adhesive.

Claims (1)

[Scope of Claims] 1. In a seedling-growing container formed by forming a columnar pot with no cover or bottom from paper or a thin film such as paper, and by attaching the outer walls of many of the pots to each other, individual pots The pot bodies are arranged vertically and horizontally with the abutting portions or overlapping portions of both ends of paper or paper-like thin film strips forming the body as one direction, and the distance between the side walls of the pot body adjacent to the abutting portions or overlapping portions is A seedling raising container characterized in that it is attached with a water-soluble adhesive and other adjacent pot bodies are attached with a water-resistant adhesive. 2. Pot body side walls adjacent to the abutting portions or overlapping portions at both ends in a direction intersecting the arrangement direction of the abutting portions or overlapping portions of the paper or paper-like thin film strips forming each pot body. 2. The seedling growing container according to claim 1, wherein the gaps are adhered alternately on the left and right sides of the arrangement direction with a water-resistant adhesive. 3. The seedling growing container according to claim 1 or 2, wherein the overlapping portion is not attached. 4. The seedling growing container according to claim 1 or 2, wherein the overlapping portion is attached with a water-soluble adhesive. 5. The seedling growing container according to claim 2, wherein either the right or left side portion of the abutting portion is adhered to the adjacent side wall of the pot body using a water-resistant adhesive. 6. The seedling growing container according to claim 2, wherein the upper side of the overlapping part is attached to the side wall of the adjacent pot body with a water-resistant adhesive.