JP3186974U - Seedling guard - Google Patents

Abstract

[PROBLEMS] To provide a seedling guard capable of protecting fertilizers and moisture while protecting seedlings grown in an outdoor field from wild animals such as pests and birds and wind damage.
A seedling guard 1 that surrounds and protects the periphery of a seedling, is a rectangular windproof portion 2 that forms four side surfaces connected by a bendable folding portion 25, and a lower end of the windproof portion 2. An insertion foot 3 projecting vertically downward is formed, and the windproof portion 2 and the insertion foot 3 are flat plate bodies in which a hollow cylinder portion 30 is provided between the front surface 10 and the back surface 20. It is integrally formed. The hollow cylindrical portion 30 is loaded with a stick-shaped stick made of a fertilizer or an insect repellent component.
[Selection] Figure 1

Description

The present invention relates to a seedling guard used to protect seedlings or seedlings.
The present invention relates to a seedling guard that surrounds and protects seedlings such as vegetables that are cultivated and grown in an outdoor field in a general farmer or a kitchen garden.

When cultivating crops and plants, seedlings are covered with a protective cover to protect the seedlings and seedlings that have sprouted from strong winds, wildlife damage, and insect damage. .
As shown in FIGS. 10 and 11, this conventional protective cover is pierced with four sticks around the seedling, cut into a cylindrical plastic bag, and covered with a square cylinder around the seedling. Create a vinyl enclosure.

The enclosure of seedlings in this plastic bag is called “andon enclosure”.
The Andon enclosure mainly protects seedlings and seedlings from the wind, and four support bars are inserted into the ground at a square position and covered with a plastic bag using the frame as a frame. I usually bring support rods and plastic bags and make them in the field.
This is because the material is a support bar and a plastic bag, and is a material that is always available in farmers and kitchen gardens, so it can be easily created.

For protection of seedlings and seedlings, Japanese Utility Model Publication No. 36-31811 “Forcible Cultivation Cover” and Japanese Patent Application Laid-Open No. 2009-106172 “Protective Cover for Raising Seedling” are disclosed.
It covers and protects seedlings and seedlings.

In addition, JP-B-39-51604 “Agricultural coating” has been proposed as an improved material of the protective cover.
Agricultural coatings are formed by mixing fertilizer powder into the material or applying a mixture of fertilizer powder to a film. It is an idea that fertilizer is eluted when exposed to rainwater.

For example, in the case of “Andon Fence”, a conventional protective cover for seedlings is fixed to the ground by piercing the support rod deeply into the soil, and the “support bone for forcing cultivation” is also in the same soil. The piercing and “protective cover for raising seedlings” are carried out by fixing with a separately provided retaining pile.
The protective cover protects still weak seedlings or seedlings from the wind that crawls the ground, removes insects and helps them grow, and is indispensable at the time of seedlings.

36-31811 “Scaps of the cover for forcing cultivation”

JP2009-106172 “Protective cover for raising seedlings”

The conventional “andon enclosure” and other protective covers require that a support bar and a pile be placed in a predetermined location.
However, this placement is cumbersome, and it is particularly troublesome to insert the own pointing rod into a square position or to insert a large number of supporting rods into appropriate positions.
The support bars are required to point vertically, and if the spacing is not as accurate as possible, the plastic bag cannot be covered later and must be corrected.

In addition, although it is set up for wind protection, if the indicator rod is weak, the “Andon enclosure” itself may fall over or be blown out without being able to withstand the wind.
Since the support rods are inserted one by one, it is easy to insert, but the durability depends on the insertion, and it is necessary to make a considerable depth.
Therefore, it is necessary to be taught how to install experienced people in the actual enforcement of “Andon Fence”.
Sunday vegetable gardeners such as non-professional home gardens require equipment and tools that do not require as much labor and effort as possible.
As in Japanese Examined Patent Publication No. 39-51604 “Agricultural coating”, the application of a fertilizer powder mixture to a film is not practical because the amount and type of fertilizer is not free.

An object of the present invention is to configure a function similar to that of an andon so that it can be installed with a single touch.
The purpose of stabbing is to arrange the shoulders at the same depth and neatly.

And it can be stably fixed to the ground when it is placed on the ground with it being put on the seedling, it can be prevented from being blown by the wind, it can protect the seedling from the damage of wild small animals and insects, if necessary An object of the present invention is to provide a seedling guard capable of allowing a fertilizer component and moisture to flow into and around the seedling.

In order to solve the above problems, the present invention proposes a seedling guard having the following means configuration.

A seedling guard that surrounds a seedling or a seedling and protects the seedling or the seedling, wherein the seedling guard is a windproof part of a rectangular tube that forms four sides connected by a foldable part, and its windproof part An insertion foot portion that protrudes vertically downward from the lower end is formed, and the windproof portion and the insertion foot portion are integrally formed of a synthetic resin flat plate. .

For the synthetic resin flat plate body, a material that incorporates sunlight with a translucent or transparent material, or a material that blocks sunlight with an opaque material is selected.
The expression of the windproof part emphasizes the windproof function and has the same meaning as the enclosure and the enclosure part.
The windproof part is open upward and takes in sunlight and rain as it is, but a translucent material is preferred because the seedling can be seen and the growth degree can be seen in side view.

The flat plate body forming the rectangular windproof portion and the insertion portion is not a single-layer plate, but a three-layer structure in which hollow cylindrical portions are provided between the front surface and the back surface so as to require strength and reduce weight. Alternatively, a structure in which a large number of square tubes are provided by arranging partition walls between the front surface and the back surface.
The three-layered flat plate body has a structure in which the cylindrical portions arranged in the inside have a cylindrical opening opened upward.
Because of this structure, a fertilizer stick or insect repellent stick can be loaded from an appropriate number of tube openings, and water can be injected and retained.

The seedling guard of the present invention is a surrounding body that covers a seedling or the like to protect the seedling and the like, and includes a windproof portion that forms four rectangular side surfaces of the seedling guard, and a lower end opening corner edge of the windproof portion An insertion leg projecting vertically downward is formed.
The windproof part and the insertion foot part are integrally formed as a single plate, and the meaning of projecting vertically means that the surface from the windproof part to the insertion foot part is not inclined, that is, a cone or taper. Since it is vertical, it can be inserted easily and accurately.

And the windproof part of the rectangular cylinder which forms the four side surfaces connected by the foldable part can be deformed into a rhombus, a sharp rhombus, or a square by the degree of folding of the refracting part.
Making it bendable can be made compact during storage and storage, and an appropriate shape can be selected and used during use.
The seedling guard opens above the windproof portion, which is a rectangular cylinder, and opens inside the lower insertion foot.

Further, it is proposed that a corner portion having a predetermined width that is depressed downward by a cut and a drooping portion that protrudes to the outside of the periphery thereof are formed between the insertion foot portions.
There is no cut-off, and since it is inserted into the soil with a total of 8 legs, 4 insertion legs and 4 corners, a stable fixation can be achieved.
In this configuration, the fixing can be further secured by drilling several holes in the fold of the drooping portion and fastening them with a U-shaped pile.

The flat plate body that forms the windproof portion and the insertion foot portion has a three-layer structure in which hollow cylindrical portions are provided in a row between the front surface and the back surface.
In the three-layer structure flat plate body, the cylindrical portions arranged in the inside open the cylindrical opening upward.
Since the cylindrical part provided in the through-line is only required to have an open cylindrical part, the cylindrical part is not limited to the cylindrical part, and a large number of vertical partition walls are interposed between the front and back surfaces of a wave-like spacer or a so-called saw blade-like spacer. You may form and form a square hollow cylinder part.

The seedling guard body is a single flat plate, and has an engaging protrusion disposed on one side edge of the developing plate and is engaged with the other side edge opposite to the engaging protrusion. A stop notch is provided, and the engaging projection is inserted into and locked in the notch, thereby connecting the both ends of the development plate to form a rectangular windproof portion as a rectangular cylinder. .
It can be folded and assembled for convenient storage and storage.
In addition, when assembling into a rectangular windproof part, it does not exclude adhesion by an adhesive, a stapler, or a stapler, and the assembling means is not limited.

The seedling guard according to the present invention has the following effects as well as being able to protect plants from damage of wild animals such as birds and insects by being covered with seedlings and placed on the ground.

(1) The seedling guard protects the Go seedling from strong winds.
(2) Seed guards protect seedlings from intense solar radiation.
(3) Since the upper and lower sides are open, there is no problem in growth because light wind and rainwater are taken in. When a translucent material is used, it is easy to see the inside from a side view.
(4) Although it depends on the height of the windbreak, it can reduce damage from birds, insects and small animals.
(5) Since they are arranged side by side in the same direction in the vegetable garden, a vegetable garden with a beautiful sensitivity can be created.

(6) Since the seedling guard is made of a single plate, it is convenient for storage and storage.
(7) Since a refraction part with a freely refraction part forms a rectangle, changing the degree of refraction makes it possible to create a rhombus or square in the top view. For example, in a beach garden, it is arranged in a rhombus toward the sea breeze. It is possible to select a shape change such as.
(8) The seedling guard can be assembled, placed at the seedling location, and pushed vertically from above. The insertion foot can be stabbed vertically into the soil and can be installed with one touch.
Since the four legs are at the corners, once stabbed, there is an effect that can only be lifted vertically and a sturdy installation can be achieved.

(9) Between each of the insertion foot portions, a corner portion having a predetermined width that sinks downward due to a cut and a drooping portion projecting to the outside of the periphery is formed by both the insertion foot portion and the corner portion. The seedling guard body is stabilized and the wind resistance is increased.
(10) A seedling guard made of a three-layered flat plate with a cylindrical arrangement, wavy spacers and saw blade spacers in the middle layer is inserted with a fertilizer stick and moisture into the cylindrical part after installation. Fertilizer and moisture can be soaked in the soil through the inside of the tube.
(11) The seedling guard made of a flat plate made of synthetic resin can be used many times every year. A durable seedling guard can be provided and it is no longer disposable like the “Andon Fence” plastic bag.
When using a flat plate made of a material that is prepared by kneading several kinds of biodegradable plastics that are naturally decomposed plants at a predetermined ratio and adjusting the decomposition period, it is not decomposed for a certain period of time and after several uses Since it is buried in the soil and decomposes naturally, it can meet the demand for natural decomposition after long-term use.

(12) Furthermore, the seedling guard according to the present invention consists of a single sheet,
An engaging protrusion is disposed on one side edge of the development plate body, and a notch for locking is provided on the other side edge opposite to the engaging protrusion, and the engaging protrusion is the notch. The both ends of the development plate are connected to form a rectangular cylinder.
Thereby, it can be stored as a single sheet when not in use, and can be easily assembled without using tools or the like at the field site when used.
Also, half can be assembled and folded.

Example 1 of the seedling guard concerning the present invention is shown, and is a whole perspective view including a partial enlarged view. It is a whole development view of Example 1 of a seedling guard concerning the present invention. It is a whole development view showing Example 2 which formed eight insertion feet by the seedling guard concerning the present invention. It is a whole development view showing Example 3 of the seedling guard concerning the present invention. It is the form which enlarged the area of the insertion surface of an insertion leg part. It is explanatory drawing which shows the state which embeds Example 1 of the seedling guard which concerns on this invention perpendicularly to the circumference | surroundings of a seedling. It is the top view which arrange | positioned and arrange | positioned several seedling guards of Example 1 which concerns on this invention into the rhombus by adjusting the refraction angle. An example is shown in which the wind direction is arranged in a field of arrow direction. Example 4 of the seedling guard according to the present invention is shown, and between each of the insertion foot portions, a corner portion of a predetermined width that becomes a small insertion foot portion that is depressed downward by a cut line, and an outer periphery thereof It is the perspective view which formed the drooping part overhanging. Similarly Example 4 of a seedling guard is shown and it is a perspective view showing an example of installation. FIG. 5 is a partially enlarged explanatory view showing a plate having a three-layer structure, which is a flat plate forming a windproof portion, and showing sticking of fertilizer and insect repellents in a cylindrical portion and retention of rainwater. It is a perspective view which shows the example of installation of the "andon enclosure" for the seedling protection used conventionally. It is an enclosure made by inserting a support bar into a square position and covering it with a plastic bag.

Next, an embodiment of the seedling guard according to this device will be described.
1 and 2 show Example 1 showing a seedling guard (1) according to the present invention. The seedling guard (1) protects the seedling. is there.
The seedling guard (1) has a windproof part (2) that forms four side surfaces, an upper end opening side of the windproof part (2), and a plurality of insertions that protrude sharply downward from a corner edge of the lower end opening of the windproof part. A foot (3) is provided.
The insertion foot part (2) is a sharp end part inclined downward from the lower end of the foldable bent part (25) connecting the four side surfaces of the rectangular cylinder and is provided at four corners. .

The seedling guard has a rectangular windproof portion (2) that forms four side surfaces connected by a bendable folding portion (25), and an insertion foot portion that projects vertically downward from the lower end of the windproof portion (2). (3) is integrally formed of a synthetic resin flat plate.
It is manufactured by press-cutting a single flat plate.
The insertion foot part (3) is a sharp end part that hangs down into a substantially triangular shape that widens upward from the lower end on both sides of the bendable folding part (25) that connects the four side surfaces. It is provided at four corners.
Since the folding part (25) is refractable, it can be deformed into a sharp rhombus or square in plan view by changing the degree of refraction.

In the first embodiment, the wind-proof portion (2) is made of a thin translucent resin having a thickness of 5 mm and has a quadrangular cylindrical shape in a plan view formed by the four folded portions (25). ) Insertion feet (3) projecting at the four corners of the lower end are provided.
The front surface (10) was 1 mm, the back surface (20) was 1 mm, and the middle cylinder (30) was 4 mm. It should be noted that even a thinner plate of 1 to 3 mm has sufficient durability if it has three layers.
The width of one side of the upper end is 250 mm, and the height is 300 mm.
The upper and lower ends of the rectangular tube shape that is the windproof portion (2) are open.

The insertion foot portion (3) is a piercing projection into the soil of 80 mm in length, in which two triangles that protrude sharply at the lower end of the four corners of the rectangular tube shape are connected at a right angle or an acute angle at the refracting portion.
The overall length of the seedling guard is such that the outer dimensions are width × depth × height: 250 mm × 250 mm × 380 mm. 80mm is designed at the height of the insertion foot (3).

The windbreak portion (2) is a flat plate body that surrounds and surrounds the seedlings or seedlings, and has functions of appropriate light shielding and isolation from small animals.
The material can be selected from translucent, transparent and opaque materials.
Translucent materials and transparent materials are used because the internal seedlings can be seen from the outside, and the amount of sunlight necessary for plant growth can be secured.
Materials that are mainly windproof can be made of opaque materials.
The design dimensions vary depending on the seedling or seedling type, etc., but the thickness of the windproof part (2) is made of a thin resin with a width of about 1 to 8 mm, and one side is 200 mm wide × 300 mm high. In addition, it can be designed according to the kind of seedlings and seedlings, such as a width of about 250 to 255 mm and a height of about 300 to 400 mm.

The windproof portion (2) is a flat plate made of translucent polypropylene (PP) resin having a thickness of 5 mm and assembled into a square tube.
The flat plate body has a three-layer structure in which a large number of circular cylindrical portions (30) arranged in the vertical direction between the front surface (10) and the back surface (20) are arranged inside.
Instead of the circular cylindrical portion (30), a three-layer structure in which a large number of cylindrical portions (30) formed by a wavy spacer are sandwiched between the front surface (10) and the back surface (20) may be used.
That is, it is the structure which arranged many hollow cylinder parts (30) vertically between the board | plate materials of the surface (10) and a back surface (20).
The upper end portion of the three-layer structure flat plate is opened with the tube opening facing upward.
A cylindrical opening end and a cylindrical portion (30) formed by a wavy spacer (not shown) face upward.

And the seedling guard (1) of Example 1 has the circular cylinder part (30) arrange | positioned in the perpendicular direction between the surface (10) and the back surface (20) inside as shown in the expanded view of FIG. A plurality of three-layered plate bodies arranged in a row are produced by press-cutting, and an engaging protrusion (21) is disposed on one side edge of the developed plate body, and the engaging protrusion (21) A locking notch (22) is provided on the other side edge of the opposite side, and the engaging protrusion (21) is inserted into and locked to the notch (22), thereby connecting both ends of the development plate. It is a rectangular cylinder.

In order to assemble the seedling guard (1), the two engaging protrusions (21) provided on both side edges of the windbreak portion (2) are simply inserted into the locking notch (22) and fixed. Good.
The shape of the rectangle can be changed by the degree of refraction of the folded portion (25).

Although three types of the shape of the insertion foot part (3) are shown in FIG. 2, FIG. 3, and FIG. 4, it is necessary to have a shape that is easy to be inserted into the soil and is not easily removed.
FIG. 2 shows four insertion feet (3) provided in the folding portion (25), respectively, and FIG. 3 shows a small corner (41) that pierces into the soil between the insertion feet (3). It is the structure provided in four places.
Since it is stabbed with a total of eight insertion feet (3), it can be installed with high wind resistance.

FIG. 4 shows the plug foot (3) cut out between the folds (25) to increase the area.
It is a little easier to use in fields where the depth cannot be taken or in light soils such as sand.

Moreover, as shown in FIG. 6, the seedling guard (1) which concerns on this invention can adjust the whole shape of the seedling guard (1).
In a field where the wind direction is almost fixed, the facing surface is preferably streamlined to avoid wind resistance, but in such a case, it is fixed to a rhombus shape with less wind resistance in consideration of the wind direction.
In addition, the shape and size of the seedling can be adjusted by changing the shape according to the shape of the seedling or seedling.

In Example 1, a cylindrical portion (10) having a small opening is provided at the upper end of the flat plate, and the cylindrical portion (10) includes a nutrient fertilizer stick (31) useful for seedlings, and an insect repellent. A stick (31) containing an optional component such as the stick (31) is selectively loaded.
The stick (31) is a solid bar and has a length of about 10 cm, and is thin enough to be inserted into the tube part (10).
In addition, not only the rod-shaped stick (31) but also liquid fertilizer or liquid or powdery insect repellent can be injected into the cylindrical portion (30). However, in the case of installation for several months, the solid stick (31 ) Is preferred.
When loaded, the solid stick (31) becomes a weight of the seedling guard (1), and the overall strength is increased.
It dissolves in rainwater, etc., and fertilizer components gradually permeate into the soil near the roots.
The tube portion (10) can naturally retain moisture such as rainwater.

The seedling guard (1) having such a structure is assembled as shown in FIG. 5 and placed at a position surrounding each seedling on the seedbed, and is pushed firmly and vertically from above to insert the insertion foot (3) into the soil. Sting.
When the base of the insertion foot (3) is stabbed, the lower edge is in contact with the ground, so it is very difficult to stab further, and the seedling guard (1) has the same depth. It will be inserted and lined up at the same height.

In Example 2, eight insertion feet (3) are formed, and each corner portion = insertion foot (3) is provided in the middle of the feet (3) in Example 1. .
In the seedling guard (1) shown in Example 2, the flat plate body is a polypropylene plate body having a structure in which square hollow rectangular tube portions (30) are arranged in a row between the front surface (10) and the back surface (20). It is. Since it is made of polypropylene, it has durability that can be used every year.
A thin rectangular tube is made by providing a number of vertical partition walls between the front surface (10) and the back surface (20).
This flat plate is press-cut as shown in the developed view of FIG. 3 to create a folded portion (25).

Example 3 is the form which enlarged the area of the insertion surface of the insertion foot | leg part (3), Comprising: The insertion foot | leg part is below the side surface of 4 surfaces which forms the wind-proof part (2) which is a rectangular hollow cylinder. (3) is provided.
It is made of a three-layer flat plate having a cylindrical portion (30), bent and refracted.
A fertilizer stick (31) or an insect repellent stick (31) is inserted into the tube portion (30) and used.

The seedling guard (1) of Example 4 shown in FIG. 7 and FIG. 8 is formed with a sharp end portion of the insertion foot portion (3) that hangs down from a foldable portion (25) on four side surfaces into a substantially triangular shape. Between the left and right triangular insertion feet (3), a corner (41) having a predetermined width that refracts downward due to a cut and a hanging portion (4) projecting to the outside of the periphery are formed. It is what has been.
A hole (5) is provided in the refracting portion at the base of the hanging portion (4), and rainwater can be penetrated and a separately prepared U-shaped pile (42) can be stuck in an inverted U-shape.
Since the hanging portion (4) is in close contact with the ground, the surroundings are protected from rainwater even when the soil is exposed without laying a nursery black sheet, and sediment flow due to rainwater can be prevented.
The hole (5) not only takes in moisture but also functions as a vent.

In addition, it is necessary to more firmly fix the seedling guard (1) on the soil, sloping ground, and land where the strong wind is normal.
Assuming that case, in Example 4, as shown in FIGS. 7 and 8, the hanging part (4) is penetrated and fixed by the U-shaped pile (42) using the hole (5). You can also.
And since it inserts in the soil with eight insertion feet (3), the seedling guard (1) becomes more stable.
The U-shaped pile (42) is non-corrosive and is preferably a fiber-reinforced resin molded body.

FIG. 9 is a plane plate body that forms the windproof portion (2), and shows a three-layer plate body. The cylindrical portion (30) is loaded with stick-like fertilizer and insect repellent and rain water stays through. FIG.
In FIG. 9, the material for creating the windproof portion (2) is a type made of a durable synthetic resin, or the degradation rate of aliphatic polyester is 6 so that the durability is biodegradable in several years. A flat plate body is used which has a natural decomposition period of a long period by adding a polyester polymer composed of other components for less than a month.
The structure of the flat plate body is such that a large number of cylindrical portions (30) arranged in the vertical direction between the front surface (10) and the back surface (20) are arranged in the inside, and the cylindrical opening is opened upward. Structure.

A stick (31) such as a fertilizer stick (31) and an insect repellent stick (31) is selectively loaded in the tube portion (30).
The stick (31) is a solid bar and has a length of about 10 cm, and is thin enough to be inserted into the tube part (10).
That is, a seedling guard (1) that surrounds and protects a seedling or a seedling, and the seedling guard (1) is a windshield of a rectangular tube that forms four sides connected by a foldable part (25). Part (2) and an insertion foot part (3) vertically projecting downward from the lower end of the windproof part (2) are formed. The windproof part (2) and the insertion foot part (3) It is integrally formed with a flat plate body in which hollow cylinder portions (30) are provided in a row between the front surface (10) and the back surface (20), and the hollow cylinder portion (30) is made of a fertilizer or an insect repellent component. It is a seedling guard loaded with a stick-shaped stick (31).
The selective loading means that a solid stick-like stick (31) having a component suitable for the soil is loaded into the cylindrical portion (30), so that an improvement suitable for the soil and a fertilizer suitable for the seedling can be applied.
Moreover, damage prevention is possible by loading the insect repellent stick (31) according to the environment and the deodorant stick (31) of small animals.

The present invention is a combination of the seedling guard (1) and the stick-shaped stick (31) with the above configuration, and it can be installed easily and neatly by simply pushing from the top with little effort and can be installed. The seedling guards are firmly embedded in the soil and guard the seedlings.
The seedling guard can be used repeatedly for several years due to the composition of the flat plate.
Furthermore, it is possible to set a natural decomposition period according to the composition of the flat plate, and to allow the seedling guard to spontaneously decompose and change to soil after a certain period.

The seedling guard according to the present invention is not limited to the materials and colors shown in the above embodiments, and it goes without saying that various design changes can be made within the scope of the claims.

The seedling guard of the present invention is installed as an enclosure in a kitchen garden or the like, and can be made very simply and inexpensively as a protective guard for seedlings or seedlings.
Since it is a foldable cylinder, storage and storage are easy.

In addition to being used as a seedling guard for nurseries in fields such as kitchen gardens and agriculture, it is possible to create a test environment by exchanging various sticks.
It is also useful as a test product for creating an environment.

DESCRIPTION OF SYMBOLS 1 Seedling guard 2 Windproof part 3 Insert foot part 10 Front surface 20 Back surface 30 Tube part 31 Stick-shaped sticks, such as fertilizer 4 Hanging part 41 Corner part 5 Hole

Claims (6)

A seedling guard for protecting the seedling or the seedling by surrounding the seedling guard, wherein the seedling guard is a rectangular windproof portion that forms four sides connected by a bendable folding portion, and downward from the lower end of the windproof portion. A seedling guard characterized in that a vertically projecting insertion foot portion is formed, and the windproof portion and the insertion foot portion are integrally formed of a flat plate. The said insertion leg part is provided in four corners by the sharp end part which inclined downward from the lower end of the bendable bending part which connects the four side surfaces of a rectangular cylinder, and was drooping substantially in the triangle. The seedling guard described. The insertion foot is a sharp end that hangs in a substantially triangular shape from a bendable fold on the four sides of a rectangular cylinder, and is refracted downward by a cut between each of the left and right triangular insertion feet. The seedling guard according to claim 1, wherein a corner portion having a predetermined width and a drooping portion projecting to the outside of the periphery thereof are formed. The windproof portion of the rectangular cylinder is a single flat plate body, and an engaging projection is disposed on one side edge of the development plate, and the other side edge on the opposite side of the engaging projection. An engagement notch is provided on the notch, and the engagement projection is inserted into and locked in the notch, thereby connecting both ends of the development plate to form a rectangular windproof portion. The seedling guard according to any one of claims 1 to 3. The flat plate body forming the rectangular windproof portion and the insertion portion has a structure in which a large number of hollow cylindrical portions are provided in a row between the front surface and the back surface, and the cylindrical portion opens a cylindrical opening upward. The seedling guard according to any one of claims 1 to 4. A seedling guard for protecting the seedling or the seedling by surrounding the seedling guard, wherein the seedling guard is a rectangular windproof portion that forms four sides connected by a bendable folding portion, and downward from the lower end of the windproof portion. An insertion leg part protruding vertically is formed, and the windproof part and the insertion leg part are integrally formed with a flat plate body in which a hollow cylinder part is provided between the front surface and the back surface, A seedling guard comprising a rod-shaped stick made of fertilizer or an insect repellent component in the hollow cylindrical portion.