JP3020613U - Nursery pot - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a seedling-growing pot for suppressing the root-rolling phenomenon when growing vegetable seedlings or flower seedlings and allowing each seedling to grow uniformly. [Structure] The pot structure has a cylindrical side wall 3 terminating at an opening edge 2 on the upper end side, and a bottom wall 4 provided with a drain hole 5, and the side wall 3 and the bottom wall 4 allow the nursery soil storage chamber 6 to grow. And a plurality of protrusions 7 extending in the vertical direction are provided on the inner side of the side wall 3.
The radius of curvature of the intersection corner portion 10 between the rising wall 8 and the side wall 3 is 1.0 mm or less.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a pot for raising seedlings, which suppresses a root-rolling phenomenon when the seedlings of a plant are raised, and allows each seedling to grow uniformly.

[0002]

[Problems to be solved by conventional techniques and devices]

 Conventionally, when raising plant seedlings such as vegetable seedlings and flowering seedlings, a pot for raising seedlings made of plastic such as polyethylene or vinyl is often used. Conventional seedling-growing pots are provided as a single seedling-raising pot container (pot) and a tray-type seedling-growing pot in which a large number of the single pots are connected and connected. In such a conventional pot for raising seedlings, the pot portion has a tubular side wall whose upper end is terminated by an opening edge, and a bottom wall which is continuous with the axial lower end of the side wall and has a drainage hole. It was configured to form a nursery soil storage chamber by the side wall and the bottom wall.

In such a pot for raising seedlings, since the root grows in a relatively small pot, the root grows along the inner surface of the pot, and the root area is very limited. Become. By the time the seedlings reach the planting / transplanting stage, most of the roots that have grown are coiled around the surface of the soil (root winding), and nutrient absorption inside the soil is insufficient. In addition, seedlings that have passed the proper period of planting / transplanting period are likely to suppress new root generation due to root-wounding roots, which is not preferable for seedling growth and survival / planting after planting / transplanting period.

At present, a pot for raising seedlings having slits in the side wall and the bottom wall is known as a means for avoiding such a state of root winding (Japanese Utility Model Publication No. 5-43838).

However, in order to manufacture such a pot with slits, it is necessary to form the slits in a separate step after molding by vacuum molding or the like, which complicates the manufacturing process. Also, due to the slit, the required strength cannot be maintained.

An object of the present invention is to provide a seedling-growing pot which is easy to form and has sufficient strength without causing a root swelling phenomenon in which the roots are well filled in the soil.

[0007]

[Means for Solving the Problems]

 The pot for raising seedlings of the present invention has a cylindrical side wall terminating at the opening edge at the upper end side, and a bottom wall continuous with the lower end side in the axial direction of the side wall and provided with a drain hole, wherein the side wall and the bottom are provided. A seedling-growing pot that is formed as a single pot by partitioning a seedling-raising soil storage chamber with a wall, wherein a plurality of vertically extending projections are provided on the inside of the side wall. It is characterized in that the radius of curvature at the intersection of the rising wall from the side wall and the side wall is 1.0 mm or less.

Another seedling-growing pot of the present invention has a cylindrical side wall terminating at an opening edge on the upper end side and a bottom wall continuous with the axial lower end side of the side wall and having a drainage hole. Then, the seedling-raising soil storage chamber is defined by the side wall and the bottom wall to form a pot, and the upper end opening edge side of the side wall of the pot is planarly arranged along one plane to connect and connect a plurality of bodies. A tray-type pot for raising seedlings, comprising a plurality of pots, wherein a plurality of protrusions extending vertically are provided inside the side wall, and the rising wall from the side wall and the side wall of the protrusion are provided. It is characterized in that the radius of curvature of a corner portion intersecting with is 1.0 mm or less.

[0009]

[Action]

 When the root grows and begins to expand in the circumferential direction along the inner surface of the pot, the root growth point comes into contact with the rising wall of the ridge and extends downward without extending further in the lateral direction. Therefore, neck wrapping is prevented.

When the radius of curvature of the corner of intersection between the rising wall from the side wall and the side wall of the ridge exceeds 1.0 mm, the corner of the intersection becomes rounded, so that the root is circumferentially surrounded along the corner of intersection. It stretches in the direction and a root winding occurs. Therefore, the radius of curvature of the intersection corner should be 1.0 mm or less.

The strength of the pot is also improved by the plurality of ridges provided on the side wall.

[0012]

【Example】

 Hereinafter, embodiments of the pot for raising seedlings of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view of a pot for raising seedlings having a single pot, FIG. 2 is a plan view of the pot, FIG. 3 is a side view of the pot, and FIG. 4 is a line AA of the pot. A sectional view and FIG. 5 are enlarged transverse sectional views showing the projections of the same pot. FIG. 6 is a partially cutaway plan view of a tray-type seedling-growing pot in which a plurality of pots (cells) are connected and connected, and FIG. 7 is an end view taken along line BB of the pot. FIG. 8 is a plan view showing an example in which the planar shape of a single pot is different.

The seedling-growing pot 1 consisting of a single pot shown in FIGS. 1 to 4 and 8 basically has a cylindrical side wall 3 terminating at an opening edge 2 on the upper end side, and this side wall 3 And a bottom wall 4 continuous to the lower end side in the axial direction of the bottom wall 4 and a drain hole 5 is provided in the center of the bottom wall 4. The side wall 3 and the bottom wall 4 divide the seedling-raising soil storage chamber 6 and are formed as a single pot.

The seedling-growing pot 1 shown in FIGS. 1 to 4 has a rectangular cross section, and the seedling-growing pot 1 shown in FIG. 8 has a circular cross section. However, in the present invention, the shape of the cross section is not limited to the above.

Eight ridges 7 extending in the vertical direction are provided inside the side wall 3 from the upper edge 2 to the lower edge. As shown in detail in FIG. 5, the ridge 7 is formed by a rising wall 8 standing substantially vertically from the side wall 3 and a top wall 9 continuous to the rising wall 8 substantially vertically, The radius of curvature (R) at the intersection corner 10 at which the rising wall 8 and the side wall 3 intersect is 1.0 mm or less. It is preferably 0.9 mm or less, and more preferably 0.8 mm or less. The intersection angle θ formed by the side wall 3 and the rising wall 8 is preferably 85 to 100 °, and particularly preferably 90 to 100 ° from the viewpoint of molding.

The height of the protrusion 7 (height of the rising wall 8) is preferably 0.3 to 3 mm. If it is less than 0.3 mm, the effect of preventing root wrapping is poor, and if it exceeds 3 mm, it is difficult to stack pots, and therefore it becomes bulky during storage and transportation. When the pot for raising seedlings of the present invention is manufactured by vacuum forming, the height of the ridges 7 is preferably 1 to 3 mm. If it is less than 1 mm, the crossing corner portion 10 becomes round and the effect of preventing root wrapping becomes poor. In the case of manufacturing by injection molding, even if the height of the ridge 7 is less than 1 mm, the intersection corner portion 10 is not rounded. Further, the width of the ridge 7 (width of the top wall 9) is preferably 0.3 to 3 mm.

The height and width of the ridge 7 do not have to be the same over the entire length, and the dimensions may be different on the way. The ridge 7 may be provided from the vicinity of the upper opening edge 2 to the vicinity of the lower end. However, in order to enhance the root-wound prevention effect, it is preferable to provide it from the upper end opening edge 2 to the lower end. The ridges 7 provided on the side wall 3 are preferably 4 to 12 in total, and are preferably evenly arranged in the circumferential direction.

If the radius of curvature at the intersection corner portion 11 where the rising wall 8 and the top wall 9 intersect is 1.0 mm or less, the neck-roll prevention effect is further improved.

On the other hand, the present invention also includes a tray-shaped seedling-growing pot 21 in which a plurality of pots are connected and connected as shown in FIGS. 6 and 7. The seedling-growing pot 21 of the present embodiment has a cylindrical side wall 23 terminating at the opening edge 22 on the upper end side, and a bottom wall 24 continuous to the lower end side in the axial direction of the side wall 23. A drain hole 25 is provided at the center of the. A plurality of pots, which define a seedling-raising soil storage chamber 26 by the side wall 23 and the bottom wall 24, are connected and connected. In this example, the pots are formed integrally by interposing a connecting flange portion 32 with the upper end opening edge 22 side of the side wall 23 of the pots being planarly arranged along one plane. The tray-shaped seedling-growing pot 21 shown in FIGS. 6 and 7 has a rectangular cross section, but the shape of the cross section is not limited to this, and a circular cross section may have any other shape. May be.

Also in the present embodiment, eight protrusions 27 extending vertically are provided inside the side wall 23 from the upper end opening edge 22 to the lower end. The shape, size, number, etc. of the ridges 27 are the same as those described above with reference to FIG. 5 for the ridges 7 of the pot 1 for raising seedlings having a single pot.

That is, it is as follows.

The ridge 27 is formed by a rising wall that is erected substantially vertically from the side wall 23 and a top wall that is continuous with the rising wall almost vertically. The rising wall and the side wall 23 are The radius of curvature (R) at the intersecting corner portion is 1.0 mm or less. It is preferably 0.9 mm or less, and more preferably 0.8 mm or less.

The crossing angle formed by the side wall 23 and the rising wall is preferably 85 to 100 °, and particularly preferably 90 to 100 ° from the viewpoint of molding.

The height of the ridge 27 (height of the rising wall) is preferably 0.3 to 3 mm. 0. If it is less than 3 mm, the effect of preventing root wrapping is poor, and if it exceeds 3 mm, it is difficult to stack pots, and therefore it becomes bulky during storage and transportation. When the pot for raising seedlings of the present invention is manufactured by vacuum forming, the height of the protrusions 27 is preferably 1 to 3 mm. If it is less than 1 mm, the crossing corners are rounded and the effect of preventing root wrapping becomes poor. When manufactured by injection molding, even if the height of the protrusions 27 is less than 1 mm, the intersection corners are not rounded. The width of the protrusion 27 (width of the top wall) is preferably 0.3 to 3 mm.

The height and width of the ridge 27 do not have to be the same over the entire length, and the dimensions may be different along the way. The ridge 27 may be provided from the vicinity of the upper end opening edge 22 to the vicinity of the lower end. However, in order to enhance the effect of preventing the wrapping, it is preferable to provide it from the upper edge 22 to the lower edge.

The ridges 27 provided on the side wall 23 are preferably 4 to 12 in total, and are preferably arranged as evenly as possible in the circumferential direction.

When the radius of curvature at the intersection corner where the rising wall and the top wall intersect is 1 mm or less, the effect of preventing root curl is further improved.

It should be noted that the seedling-growing pot 1 formed of a single pot body shown in FIGS. 1 to 4 and 8 and a tray formed by connecting and connecting a plurality of pot bodies shown in FIGS. 6 and 7. The material of the pot 21 for raising seedlings is preferably plastic such as polyethylene or polystyrene.

Hereinafter, description will be made on the basis of data of use test examples of the seedling-growing pot of the present invention. When Chinese cabbage (Musou) was raised using a 128-well tray type nursery pot and a 200-well tray type nursery pot, the data shown in Table 1 (128 holes) and Table 2 (200 holes) were obtained. It was The survey date is about one month after the seeding date.

[0031]

[Table 1]

[Table 2] In the table, the test No. 1 and test No. No. 4 uses the pot for raising seedlings of the present invention shown in FIG. 6 and FIG. In the pot of No. 1, the radius of curvature (R) at the intersection corner was 0.7 mm, and the test No. In the No. 4 pot, the radius of curvature (R) at the intersection corner is 0.9 mm. Test No. 2 and test No. Test No. 5 used a seedling-growing pot having a radius of curvature (R) of the crossing corners of the protrusions of 1.1 mm. 3 and test No. No. 6 used pots for raising seedlings having no ridges, and these are shown as comparative test examples.

[Discussion on Test Results] The root length value is the same as that of Test No. 3 and test No. No. 6 is the highest in each table, and the test No. using the pot with the radius of curvature (R) of the crossing corner of the ridge of 1.1 mm. 2 and test No. 5 is next highest. This is because, in the case of a pot without a ridge, the root of the seedling was wound around the pot wall, and even in a pot having a ridge, the radius of curvature (R) at the intersection corner of the ridge was 1. If it exceeds 0 mm, it means that the effect of preventing root wrapping is not sufficient. The numerical value of the underground weight is the test No. using the pot for raising seedlings of the present proposal. 1 and test No. 4 is the highest in each table, and it can be said that the number of roots in the pot increased accordingly.

[0033]

[Effect of device]

 The pot for raising seedlings of the present invention has a simple structure, can be easily manufactured by molding plastic, and is economically extremely advantageous in that it is suitable for mass production. Furthermore, the seedling-growing pot of the present invention has a plurality of specific ridges provided on the side wall of the pot, so that the root can be well-tensioned in the soil and the root-rolling phenomenon can be suppressed. It is extremely effective in that it has good roots and good root growth, and enables ideal seedling growth that extends to deep layers. It also has sufficient strength during storage, transportation, and raising seedlings.

[Brief description of drawings]

FIG. 1 is a perspective view of a pot for raising seedlings according to an embodiment of the present invention.

FIG. 2 is a plan view of the pot for raising seedlings shown in FIG.

FIG. 3 is a side view of the seedling raising pot of FIG.

4 is a cross-sectional view taken along the line AA of FIG.

5 is an enlarged cross-sectional view showing a protrusion of the pot for raising seedlings of FIG. 1. FIG.

FIG. 6 is a partially cutaway plan view of a pot for raising seedlings according to another embodiment.

FIG. 7 is an end view taken along line BB in FIG.

FIG. 8 is a plan view of a pot for raising seedlings according to still another example.

[Explanation of symbols]

 1,21 Seedling raising pot 2,22 Upper opening edge 3,23 Cylindrical side wall 4,24 Bottom wall 5,25 Drain hole 6,26 Seedling soil storage chamber 7,27 Projection 8 Standing wall 9 Top wall 10 Crossing angle Part 11 Cross corner part 32 Connection flange part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Mikio Matsunaga 460-44 Rokujizo, Ritto-cho, Kurita-gun, Shiga Prefecture (72) Creator Takamitsu Otani 58 Shimogamo Umenogi-cho, Sakyo-ku, Kyoto-shi, Kyoto Prefecture

Claims (16)

[Scope of utility model registration request] 1. A seedling-growing soil having a tubular side wall terminating at an opening edge on the upper end side and a bottom wall continuous with the lower end side in the axial direction of the side wall and having a drain hole, the side wall and the bottom wall. A seedling-growing pot that divides the storage chamber and is formed as a single pot, wherein a plurality of protrusions extending in the up-down direction are provided inside the side wall, and the rising wall from the side wall in the protrusion is formed. The seedling-growing pot is characterized in that the radius of curvature of the corner portion intersecting with the side wall is 1.0 mm or less. 2. The pot for raising seedlings according to claim 1, wherein the number of ridges is eight. 3. The seedling-growing pot according to claim 1, wherein the radius of curvature of the intersection corner is 0.9 mm or less. 4. The seedling-growing pot according to claim 1, wherein the radius of curvature of the intersection corner is 0.8 mm or less. 5. The pot for raising seedlings according to claim 2, wherein the radius of curvature of the intersection corner is 0.8 mm or less. 6. The seedling raising pot according to claim 1, wherein an intersection angle formed by the side wall and the rising wall is 90 to 100 °. 7. The seedling-growing pot according to claim 1, wherein the height of the protrusion is 0.3 to 3 mm. 8. The pot for raising seedlings according to claim 1, wherein the width of the ridge is 0.3 to 3 mm. 9. A seedling-growing soil having a tubular side wall terminating at an opening edge on the upper end side and a bottom wall continuous with the lower end side in the axial direction of the side wall and having a drain hole, the side wall and the bottom wall. A tray type nursery comprising a plurality of pots formed by dividing the storage chamber into a pot, and arranging the upper end opening edge side of the side wall of the pot in a plane along a plane to connect and connect the plurality of pots. A pot for use, wherein a plurality of protrusions extending in the vertical direction are provided on the inside of the side wall, and a radius of curvature of a corner of intersection between the rising wall from the side wall and the side wall of the protrusion is 1.0 mm or less. A pot for raising seedlings characterized by being. 10. The pot for raising seedlings according to claim 9, wherein the number of ridges is 8 per pot. 11. The seedling-growing pot according to claim 9, wherein the radius of curvature of the intersection corner is 0.9 mm or less. 12. The seedling raising pot according to claim 9, wherein the radius of curvature of the intersection corner is 0.8 mm or less. 13. The seedling-growing pot according to claim 10, wherein the radius of curvature of the intersection corner is 0.8 mm or less. 14. The seedling-growing pot according to claim 9, wherein an intersection angle formed by the side wall and the rising wall is 90 to 100 °. 15. The seedling-growing pot according to claim 9, wherein the protrusion has a height of 0.3 to 3 mm. 16. The seedling-growing pot according to claim 9, wherein the protrusion has a width of 0.3 to 3 mm.