JPH08331982A - Apparatus for raising nursery plant - Google Patents

Abstract

PURPOSE: To provide an apparatus for raising nursery plants capable of preventing the nursery plants from lodging or stems from bending due to a wind or irrigation and suitable for the nursery plants, etc., for grafting by installing an upper tray having a thickness in the vertical directions and holes in the front, rear, left and right directions when viewed in a plane and a lower tray having holes opposite to the holes in the upper and lower sides. CONSTITUTION: For example, this apparatus for raising nursery plants is obtained by installing an upper tray 2, having a thickness A in the vertical directions and formed into a rectangular shape when viewed in the plane and further circular holes 1 at an interval in the front, rear, left and right directions when viewed in the plane, regulating the thickness A to a favorable one as the length of a stem of the grafting seedling, providing the smaller holes 1 than the outside diameter of cotyledons, forming a lower tray 3 into a rectangular shape in the same manner as that of the upper tray 2 and providing holes 4 at nearly the same interval as that of the upper tray 2 in the front, rear, left and right directions and preferably forming the holes 4 into a tapered shape having the upper side of nearly the same diameter as that of the holes 1 and the lower side of a smaller diameter than the inside diameter of holes 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling raising device for growing seedlings for grafting.

[0002]

2. Description of the Related Art Raising seedlings, for example, Solanaceae (tomato, eggplant, etc.)
It is common to grow seedlings for grafting in the family of Cucurbitaceae (cucumber, etc.) on a tray containing soil. .

[0003]

However, the stalks immediately after germination are very thin, and therefore, if the wind blows or water is applied from above, the stalks will bend and the grafting work will be hindered.

[0004]

The present invention provides a seedling raising device capable of preventing fall of seedlings, and has taken the following technical means. That is, a seedling raising apparatus is provided in which an upper tray 2 having a thickness in the vertical direction and having a hole 1 in the front-back and left-right directions in a plan view and a lower tray 3 having a hole 4 facing the hole 1 are provided in the vertical direction.

[0005]

[Operation] Seedlings germinated in the lower tray 3 are in the upper tray 2
Enter hole 1

[0006]

[Effect] Since the seedlings are supported by the upper tray 2,
It can prevent lodging of seedlings and bending of stems due to wind and irrigation.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. First, the structure will be described. The upper tray (plate-shaped in the embodiment) 2 has a thickness A in the vertical direction and is formed in a rectangular shape in plan view, and is provided so as to easily reflect light (for example, white). . The upper tray 2 is provided with circular holes 1 at intervals in the front-rear direction and the left-right direction in plan view, and the thickness A is a preferable length as a stem length of grafted seedlings (sprouting seedlings, rootstock seedlings). (For example, 40 mm to 70 mm). Further, it is preferable that the hole 1 is provided smaller than the outer diameter of the cotyledon.

Like the upper tray 2, the lower tray 3 is also formed in a rectangular shape, and has holes 4 in the front-rear and left-right directions at substantially the same intervals as the holes 1 of the upper tray 2. The hole 4 has a tapered shape in which the upper side is formed to have substantially the same diameter as the hole 1 and the lower side is formed to be smaller than the inner diameter of the hole 4. In the embodiment of FIG. 3, the bottom hole 5 (on the lower tray side) of the hole 1 of the upper tray 2 is provided in a tapered shape.

In FIG. 4, the hole 1 of the upper tray 2 is provided in a tapered shape with the lower tray side being made smaller, and the diameter d of the bottom hole 5 of the hole 1 is larger than the diameter D of the upper end of the hole 4 of the lower tray 3. Is also small. In FIG. 5, the bottom hole 5 of the upper tray 2 is provided in an elliptical shape close to the shape of the seed, which is suitable for making seedlings of the Cucurbitaceae. Further, the bottom hole 5 may be provided with an inclination of about 45 degrees (see FIG. 8).

FIG. 9 shows a screw shaft 6 whose outer surface is formed as a screw and whose axial center is arranged in the lateral direction so as to be rotatable. Reference numeral 7 denotes a moving body that meshes with the screw shaft 6 and reciprocates in the direction of the arrow as the screw shaft 6 rotates. A brush 8 having a weak elastic force is vertically provided on the moving body 7. The lower end of the brush 8 contacts the upper surface of the upper tray 2. FIG. 10 shows another embodiment of the tray in which a root pot guard (material such as paper, soft cloth, mesh body, etc.) 11 is provided in the hole 10 provided in the tray 9.

Next, a seedling raising method using a tray will be described. First, soil and seeds are supplied to the holes 4 of the lower tray 3, and the holes 1 are formed on the upper surface of the lower tray 3 and the holes 4 of the lower tray 4.
Place the upper tray 2 according to. The upper tray 2 may be placed on the lower tray 3 and the holes 1 and 4 may be combined to supply soil and seeds. Then, seedling raising work is performed.

By the above-mentioned means, the stem enters the hole 1 and the cotyledon also extends laterally as the seedling grows. During this growth, the holes 1 prevent the seedlings from lodging due to wind or irrigation. Moreover, since the cotyledon leaves the cotyledons out of the hole 1 and receives light (sunlight in the example) at the time of growth, grafting work (especially grafting work by machine) can be easily performed because the hypocotyl length under the cotyledons is uniform. To do. Since the light enters through the hole 1 from above, the bending of the shaft is small, and the mechanized grafting work can be performed even better. When the upper tray 2 is colored so that light can be easily reflected, even if the cotyledon is in the hole 1, the light is well reflected on the leaves by the reflected light and the growth of the seedlings is improved.

If the hole 1 of the upper tray 2 shown in FIG. 3 is provided in a tapered shape with a large size on the upper side, growth will not be hindered even if the cotyledon becomes large. By providing the bottom hole d of the hole 1 of the upper tray 2 smaller than the upper end diameter D of the hole 4 of the lower tray 3 as shown in FIG. 4, a part of the taper of the hole 1 of the upper tray 2 becomes a seed when seeding. It can be used as a guide and can be guided to the center of the hole 4, and the center of the shaft and the center of the root pot can easily coincide with each other, and defective grafting due to the inclination of seedlings can be prevented during grafting work.

By forming the bottom hole 5 of the hole 1 of the upper tray 2 in an elliptical shape, the seeds can be sown with the seeds aligned in the longitudinal direction, and the cotyledons of the seedlings can be aligned during growth. Therefore, the seedlings can be easily supplied during the mechanical grafting work, and the working efficiency can be improved. Effective for seedlings of the Cucurbitaceae.
Further, as shown in FIG. 8, since the bottom holes 5 of the holes 1 are inclined (about 45 degrees in the embodiment), the distance between the holes 1 can be reduced to grow a large number of seedlings.

As shown in FIG. 10, by bringing the brush 8 into contact with the upper surface of the upper tray 2, the seedlings coming out early from each hole 1 are touched and the growth is suppressed, so that the lengths of the seedlings can be made almost uniform. Make mechanization of grafting work easier. In FIG. 10, the root pot guard 11 is provided on the inner surface of the hole 10 of the lower tray 9 to prevent the root pot from collapsing when the seedlings are taken out or after taking out the seedlings.

When growing rootstock seedlings, by providing the upper tray 2 with a thickness A of approximately 30 to 60 cm, the hypocotyl having cotyledons can be cut off by cutting at the upper surface of the upper tray 2 and the length of the rootstock seedlings can be cut. This makes it easy to perform grafting work. Further, the cut cotyledons remain on the upper tray and are therefore easy to collect. In the embodiment, the upper tray 2 is placed on the lower tray 3 in a single stage, but a plurality of sheets having a small thickness A may be stacked.

[Brief description of drawings]

FIG. 1 is a front cross-sectional view in which trays, which have been partially removed, are arranged vertically.

FIG. 2 is a plan view of a partially cut tray.

FIG. 3 is a front cross-sectional view in which an upper tray and a lower tray according to another embodiment, which are partially removed, are vertically arranged.

FIG. 4 is a front sectional view in which an upper tray and a lower tray each having a partially cut tapered hole are vertically arranged.

FIG. 5 is a front sectional view in which an upper tray and a lower tray according to another embodiment, which are partially removed, are vertically arranged.

FIG. 6 is a plan view of an upper tray of another embodiment, which is partially cut away.

FIG. 7 is a plan view showing the cotyledon deployment of the upper tray of another embodiment, which is partially removed.

FIG. 8 is a plan view of an upper tray of another embodiment, which has a bottom hole of another embodiment and is partially cut away.

FIG. 9 is a front cross-sectional view of a tray in which brushes are provided above and arranged above and below.

FIG. 10 is a front sectional view of a partially cut lower tray provided with a root pot guard.

FIG. 11 is a front sectional view in which an upper tray for a rootstock seedling is placed on a lower tray.

[Explanation of symbols]

 1 hole 2 upper tray 3 lower tray 4 hole

Claims (1)

[Claims] 1. An upper tray 2 having a thickness in the vertical direction and having holes 1 in the front-back and left-right directions in a plan view, and the hole 1.
And a lower tray 3 having a hole 4 facing each other and a lower tray 3 provided above and below.