JPH0416982Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a pine for pot seedlings used in so-called pot seedling raising, in which seedlings of cultivated crops such as strawberries are grown in pots. It is.

[Conventional technology]

For cultivated products such as strawberries, raise seedlings → (temporary planting) → permanent planting,
After that, the fruits of the cultivation are harvested. The soil in which cultivated products are grown is generally infested with many germs such as Fusarium fungi and virus bacteria, making the cultivated products susceptible to yellow wilt, viral diseases, and the like.

Therefore, when raising seedlings of cultivated crops such as strawberries, pot-raising is often performed. In this pot seedling raising, it is customary to carry out night-cold raising of seedlings for about two months in the summer.

In this case, conventionally, as shown in Fig. 3, the pot 1 is placed directly on the soil, and the soil 2 in the pot 1 is
After raising the strawberry seedlings by watering them,
Once planted, the same cultivation methods are used.

However, in the above-mentioned pot seedling raising process, the grown roots of the cultivated plants are removed from the pot.
It grows out of the drainage hole 1a formed in the bottom wall of the tank and extends into the soil. As mentioned above, soil is infested with many germs, so if the grown roots of a cultivated plant get into such soil, these germs can make the seedlings more susceptible to diseases. It hinders the growth of cultivated crops. In particular, cultivated plants are susceptible to diseases during seedling raising. Therefore, it was necessary to sterilize the soil under Pot 1.

However, sterilizing soil as described above is costly and requires complicated work, so in recent years, as shown in Figure 4,
A film sheet 3 is laid down to isolate the pot 1 from the soil, and the pot 1 is placed on this film sheet 3.
A method of growing seedlings by placing them on top is used. However, in the above seedling raising method, irrigation water flowing out through the drainage hole 1a of the pot 1 may accumulate on the film sheet 3, or the watertightness of the film sheet 3 may cause the drainage hole 1a of the pot 1 to be watertightly blocked. As a result, water drainage in Pot 1 became extremely poor, creating a new problem that caused the plants to become rooted.

Therefore, as shown in Fig. 5, an integrally molded black polyethylene or polypropylene mat 4 with a flat bottom plate shape and a corrugated top plate shape was placed on top of the soil. There is also a method of raising seedlings in which the pot 1 is placed on top of the black pine 4 and the seedlings are raised.

[Problem that the invention attempts to solve]

However, in the above seedling-raising method shown in FIG. 5, although the upper plate of the black pine 4 is formed in the shape of a corrugated plate, the black pine 4 itself is in the form of a large sheet, so a large number of them are arranged side by side. Irrigation water flowing out from the drainage holes 1a of each pot 1 tends to disperse and accumulate in unspecified locations. As a result, drainage of irrigation water deteriorates, and cultivated plants placed in pots near the standing water tend to be uprooted.

In addition, during the seedling-raising work, the worker
When stepped on, the corrugated plate-shaped portion of the black pine 4 tends to collapse, and the black pine 4 has extremely poor shape recovery properties. If the corrugated plate-shaped portion of the black pine 4 is crushed in this manner, the drainage performance from the pot 1 will further deteriorate, causing rooting.

Moreover, because of its black color, black pine 4
Not only does it become easier for pests such as oil beetles to approach and cause damage to the cultivated crops, but while the area where pot 1 is not placed absorbs sunlight, the area where pot 1 is placed, that is, pot 1 The area around the bottom wall will be in darkness. in this way,
When the black pine 4 absorbs sunlight, the black pine 4 becomes high in temperature, and as a result, there is a possibility that the black pine 4 may be thermally deformed or the high heat may have an adverse effect on the cultivated products.

Also, if the area around the bottom wall of Pot 1 is in darkness, the roots of the cultivated plants will tend to grow towards the darkness.
Therefore, there is a problem in that the roots of the cultivated plant come out from the drainage hole 1a of the pot 1 and grow in a way that the roots extend outside the pot 1.

[Means for solving problems]

In order to solve the above-mentioned problems, the pot pine for raising seedlings according to the present invention has a synthetic resin foam sheet having a white color such as white, gray, or silver in color, and the upper surface thereof is formed into a corrugated plate shape. It is characterized in that a large number of water passage holes are provided in the corrugated sheet-shaped portion, and a water permeable sheet such as non-woven fabric or paper that has the property of seeping out water is laminated on the lower surface of the foam sheet.

[Effect]

As mentioned above, by forming the synthetic resin foam sheet that makes up the pine for pot seedlings in a white color, it will not only keep out pests such as oilseed insects, but also diffusely reflect solar pores, making the foam sheet a white color. can be prevented from reaching high temperatures. Further, when the foam sheet has a white color, the area around the bottom wall of the pot is kept bright due to the corrugated plate-shaped portion of the foam sheet and the diffused reflection of light.
The roots of cultivated plants tend to grow in the direction of darkness, so if the bottom wall of the pot is kept bright, the roots of cultivated plants will not try to come out of the pot's drainage holes and will grow inside the pot. It tries to grow in a spiral shape.

In addition, synthetic resin foam sheets have excellent elasticity and restorability due to their foam structure, and even if a worker steps on this synthetic resin foam sheet, it will immediately return to its original shape. The formed corrugated plate shape is not easily destroyed. Therefore, good drainage performance is ensured by the corrugated portion of the synthetic resin foam sheet. In addition, the corrugated sheet-shaped portion of the synthetic resin foam sheet has many water passage holes, so the water that flows out from the drainage hole of the pot does not accumulate, but the water that flows out through the troughs of the corrugated sheet-shaped portion. enters each water passage hole, passes through the water-permeable sheet, and is reliably drained.

Furthermore, even if the roots of the cultivated plant grow and extend out from the drainage hole of the pot and enter the water hole of the synthetic resin foam sheet, the roots that have entered the water hole will be removed from the synthetic resin foam sheet. A water-repellent sheet laminated to the bottom of the resin foam sheet prevents water from reaching the soil beneath the pine. This isolates the soil that has a lot of germs from the roots of the cultivated plants, so even if the soil under the pine tree is not sterilized, the germs in the soil will not cause the cultivated plants to become infected. The situation can be avoided.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

The synthetic resin foam sheet 5 is formed of, for example, closed-cell foamed polystyrene or the like, preferably closed-celled foamed polyethylene or the like. It has a suitable hardness, excellent elastic recovery power, and is white in color, such as white, gray, or silver. This synthetic resin foam sheet 5
The upper surface of the foam sheet 5 is formed into a corrugated plate shape, and a large number of water passage holes 7 penetrating the foamed sheet 5 are distributed and provided in each trough of the corrugated plate shaped portion 6 .
Further, the lower surface of the foamed sheet 5 has a flat surface shape, and a water-repellent sheet 8 made of nonwoven fabric, paper, or the like, which has the property of allowing water to seep through, is laminated on the lower surface.

In the above configuration, when raising seedlings using this pine, it is laid on soil, etc., as shown in FIG. Then, a pot 1 of a seedling-raising box made of vinyl chloride or the like is placed on the upper surface of the pot seedling-raising pine, that is, straddling each peak of the corrugated plate-shaped portion 6 of the synthetic resin foam sheet 5. In this way, the seedlings of the cultivated product planted in the soil 2 in the pot 1 are grown for about two months. In practice, in order to prevent the invasion of oilseeds and the like, the pot 1 is largely covered with a cover made of non-woven fabric or cold sand to protect the cultivated product.

Since the synthetic resin foam sheet 5 constituting the pot seedling pine is white in color, it does not attract pests such as oilseeds. The seedlings of the cultivation are therefore protected from pests. It should be noted that although oilflies and the like have the property of avoiding white substances, this effect is particularly noticeable in silver colors, and therefore it is desirable that the foam sheet 5 has a silver color.

Further, since the synthetic resin foam sheet 5 is white in color, the foam sheet 5 diffusely reflects sunlight and prevents the foam sheet 5 from becoming hot. This prevents the cultivated plants from being adversely affected by abnormally high temperatures.

Furthermore, the foamed sheet 5 is formed in a white color, and the pot 1 is placed on the corrugated plate-shaped portion 6 which is raised in a concavo-convex manner, thereby providing good air permeability and water permeability to the drainage hole 1a of the pot 1. This not only ensures the entry of oxygen, but also allows the area around the bottom wall of pot 1 to be kept bright due to the diffused reflection of light. The roots of cultivated plants tend to grow in the direction of darkness, so if the bottom wall of pot 1 is kept bright, the roots of cultivated plants will grow towards the drainage hole of pot 1, as shown in Figure 1. Avoid leaving 1a,
It tries to grow in a spiral shape in the soil 2 inside the pot 1.

In addition, the synthetic resin foam sheet 5 has a foam structure and has excellent elasticity and restorability.
Even if an operator steps on the synthetic resin foam sheet 5 during seedling-raising work, the corrugated plate shape formed on the upper surface of the foam sheet 5 will not be destroyed because it will immediately return to its original shape. Therefore, the corrugated plate-shaped portion 6 of the synthetic resin foam sheet 5 ensures good drainage performance. Furthermore, a large number of water holes 7 are formed in the corrugated plate-shaped portion 6 of the synthetic resin foam sheet 5. Therefore, even if the water irrigated to the cultivated plants in the pots 1 placed in parallel on the foam sheet 5 flows out from the drainage holes 1a of the pots 1, this irrigation will not be carried out as described above. The water flows through the troughs of the corrugated plate-shaped portion 6, enters each water-permeable light 7 provided in the corrugated plate-shaped portion 6, and further permeates through the water-permeable sheet 8 to form the water under the water-permeable sheet 8. It flows into the soil and is definitely discharged. Therefore, the drainage of water to the cultivated plants in the pot 1 is very good, and drainage water does not accumulate on the foam sheet 5.

Furthermore, even if the roots of the cultivated plant grow and extend out from the drainage hole 1a of the pot 1 and enter the water passage hole 7 of the synthetic resin foam sheet 5, the water passage hole 7... 7. The roots that have entered...
The water permeable sheet 8 laminated on the lower surface of the synthetic resin foam sheet 5 prevents water from reaching the soil beneath the pine. This ensures that the roots of the cultivated plants are isolated from the soil, which has a lot of bacteria.
Even if the soil under the pine tree is not sterilized, it is possible to avoid a situation where the cultivated plants become infected with diseases due to various bacteria in the soil.

In addition, the above-mentioned water passage hole 7... is 1 in this embodiment.
It has a size of about 3 mm. This water hole 7
If ... is too large, it will be easier for the roots of the cultivated plants to enter, but if water hole 7 is too small, drainage will be poor, so take these circumstances into consideration when adjusting the hole diameter of water hole 7. need to be set. In addition, in this embodiment, the water passage holes 7 were provided only in the valleys of the synthetic resin foam sheet 5, but the foam sheet 5
For convenience of manufacturing, etc., the water passage holes 7 are provided not only in the valleys of the foam sheet 5 but also in the peaks thereof. Even if the water passage holes 7 are provided randomly, no problem will occur. do not have.

Note that the field in which the pot seedling pine of the present invention is used is not limited to strawberry cultivation.

[Effect of idea]

As described above, in the pot pine for raising seedlings according to the present invention, the upper surface of the white synthetic resin foam sheet is formed in the shape of a corrugated plate, and the corrugated plate-shaped portion is provided with a large number of penetrating water holes. Additionally, a water permeable sheet having a property of permeating water is laminated on the lower surface of the foam sheet.

As a result, the drainage performance of irrigation water is greatly improved, the air permeability and water permeability are also excellent, and sufficient oxygen can be ensured to be supplied to the cultivated products. In addition, it not only keeps pests such as oilseeds away and prevents the synthetic resin foam sheet from becoming too hot, but also prevents the roots of cultivated plants from coming out of the drainage holes of the pot as much as possible. Furthermore, even if the roots of the cultivated plants grow and emerge from the drainage hole of the pot, the roots are isolated from the soil by the water-permeable sheet, so there is no risk of the cultivated plants becoming infected with diseases. Therefore, there are many effects such as eliminating the need to sterilize the soil on which the pot seedling pine is laid.

[Brief explanation of the drawing]

1 and 2 show an embodiment of the present invention, and FIG. 1 is a longitudinal cross-sectional view showing a state in which cultivated plants are raised using a pot seedling pine;
FIG. 2 is a cutaway perspective view of a pine for raising seedlings in pots. 3 to 5 are longitudinal sectional views showing conventional examples, respectively. 1 is a pot, 1a is a drainage hole, 2 is soil, 5 is a synthetic resin foam sheet, 6 is a corrugated plate-shaped portion, 7 is a water hole, and 8 is a water permeable sheet.

Claims (1)

[Claims for Utility Model Registration] 1. The upper surface of a white synthetic resin foam sheet is formed in the shape of a corrugated plate, and this corrugated plate-shaped portion is provided with a large number of penetrating water holes. A pine for raising seedlings in a pot characterized by having a water permeable sheet laminated on the lower surface thereof which has the property of allowing water to seep through. 2. The pot pine for raising seedlings according to claim 1, wherein the synthetic resin foam sheet is white, gray, or silver colored. 3. A pine for raising seedlings in pots according to claim 1, wherein the water permeable sheet is made of a nonwoven fabric. 4. The pot pine for raising seedlings according to claim 1, wherein the water permeable sheet is made of paper. 5. The pot pine for raising seedlings according to claim 1, wherein water holes are scattered in the valleys of the corrugated plate-shaped portion of the synthetic resin foam sheet.