JPH037511A - Seedling raising bed - Google Patents

Abstract

PURPOSE:To harden the circumference of the soil of a transplanted seedling, to prevent the damage of seedling in divided transplantation with a transplantation machine and to enable accurate transplantation of seedling by putting kneaded soil into a seedling box and pressing the soil with a mold frame having inverted truncated pyramidal form. CONSTITUTION:Soil 2 kneaded with water is put into a seedling box 1 in an amount of 70-80vol.% of the box and pressed from above with a seedling bed- forming mold frame 3 fitting to the box 1, having inverted truncated pyramidal forms 3a at the reverse face and having a protrusion 3b for forming a lowing hole at the center of each truncated top face. Thereafter, the mold frame 3 is removed to form a seedling bed composed of kneaded soil blocks connected at the bottom and separated from each other at the top part. A sowing hole is opened at the center of the truncated top of each block to obtain the objective seedling raising bed composed of kneaded soil packed in high density at the surface of the block.

Description

[Detailed description of the invention] Industrial applications This invention relates to a nursery bed, and the details thereof are as follows.

This relates to a seedbed called a soil block, which is an independent seedbed made of clay inside a seedling box.

BACKGROUND OF THE INVENTION Conventionally, seedling beds have been known in which a seedling box is filled with mixed soil and cut grooves are cut into the base in the shape of a yolk.

Also, as disclosed in Japanese Patent Application Laid-Open No. 55-9778,
A technique is known in which a block seedbed whose surface is covered with a cover is formed in a seedling box, and the cover is removed during sowing and raising of seedlings to grow the seedlings.

Problems to be Solved by the Invention In conventional seedbeds in the form of soil blocks with grooves cut in the shape of a substrate, each seedbed block has a soft surface.
When watering during seedling raising, the blocks collapse and it is difficult to separate the seedlings from each block after they have grown. This is especially true when transplanting seedlings with the seedling bed in which the seedlings have grown in the box mounted on the seedling stand of the transplanter. It was difficult to separate the block seedlings one by one with the separating claw.

In addition, in the method disclosed in Japanese Patent Application Laid-Open No. 55-9778, the seedlings are grown with a cover to prevent the surface from collapsing. Since it is necessary to remove the cover at the early stage of growth, the surface of the seedbed collapses during irrigation, and furthermore, removing the cover is troublesome.

Means for Solving the Problems In order to solve the problems of the prior art described above, the present invention comprises filling a seedling box 1 with kneaded soil 2 made by mixing soil with water to a predetermined height. A formwork 3 for forming a seedbed, which is formed into an inverted bowl-shaped aggregate with a truncated pyramidal back surface and has a protrusion 3b directed downward at the center of the top of each bowl body 3a for forming a seeding hole. After press fitting, the formwork 3 is removed and the seedling box 1 is
Inside, a mixed soil block seedbed 5a is formed whose lower sides are continuous with each other and whose upper sides are independent from each other, and the surface side of the mixed soil blocks is densely formed in an independent seedling box with a seeding hole 4 formed at the center of the top of the bed. It was used as a packed nursery bed.

Functions and Effects of the Invention According to this invention, the molded soil packed in the seedling box is formed into an inverted bowl-shaped aggregate whose back surface is truncated and pyramid-shaped from the upper part, and the lower end of the form is Since the seedling bed is pressed without reaching the bottom of the seedling box to form a seedling bed in the form of a mixed soil block inside the seedling box, the surface of each block seedling bed becomes highly dense and the surface becomes very rough. It becomes hard and resembles hard wall soil. In addition, since seeding holes are formed in the center of each block seedling bed at the same time, the top side and the surrounding surface of the top side become hard and do not collapse even when watered, and their shape remains the same even during seedling raising. It is maintained and can be reliably divided one by one when transplanting. In particular, in the case of split transplantation using a transplanter, damage to the seedlings can be reduced and accurate transplantation can be achieved, since the bottom of each seedbed is a continuous mat-like surface with a low density that allows the roots of the seedlings to easily grow. The seedlings grow well, and the seedbed does not collapse or the pitch of each block seedbed is out of order even when the seedlings are placed on the seedling stand of the transplanter and transferred with a belt, making it extremely suitable as a seedbed for use in a transplanter.

The figure shows an example of the present invention, in which a seedling box 1 made of ordinary synthetic resin with a length of 60 cm, a width of 30 cm and a height of 3 cm is filled with clay material in advance. A relatively high excavated piece of clay was baked and filtered through a mesh of 1 to 3 meshes, and kneaded soil 2 was mixed with water for 7 to 8 minutes to fill it, and then on top of that, an inverted bowl-shaped aggregate with a truncated pyramid shape on the back. A formwork 3 for forming a seedbed, which is formed in the form of a seedbed and has a protrusion 3b for forming a seeding hole directed downward at the center of the top of each bowl body 3a.
The lower end surface (a) of the formwork 3 is fitted and pressed from above.
The press is stopped when the mold is not in contact with the bottom surface (b) of the seedling box 1, and the formwork 3 is removed.

In this way, a block seedbed 5a having a truncated pyramid shape with a 2 to 3 cm square upper surface is formed in the seedling box 1, and a seeding hole 4 formed by the projection 3b is formed at the center of the top of the block seedbed 5a. A seedling bed 5 is formed.

The seedling bed 5 formed in this way, when molded,
Since the inner surface is pressed by the inverted pyramid-shaped bowl body 3a and holds the mixed soil 2, the upper surface becomes denser and harder, making it difficult to collapse. Also, conversely,
The lower part has a lower density and is softer, and in the continuous lower mat floor part 5C, the roots of the seedlings can easily grow, and the mat is finished so that the seedlings can grow well when raising the seedlings.

After that, the blocks are properly dried to make the surface of the block white and dry, and then seeding is carried out.

That is, a coated seed 6 in which one seed is coated with lime or the like is sown in the seeding hole 4, and the top is covered with soil 7 such as park compost. The one with good water absorption is good. After sowing and covering with soil in this manner, the seedlings are grown by watering, and the seedlings grow as shown in the figure.

The seedlings grown in this way with block seedbeds maintain their original shape without deforming each block seedbed even during seedling management, and can be separated accurately when dividing. In addition, when transplanting is carried out by loading the seedlings on the seedling stand of a transplanting machine, since the bottom side has a continuous mat bed section 3c, belt transfer, etc. is easy, and the pitch of each block seedling bed is not disturbed. Accurate separation and transplantation can be performed without any problems.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, and are shown in Figures 1 to 3.
The figure is a cross-sectional view showing the process of manufacturing the seedling bed, FIG. 4 is a partially cutaway slope view of the seedling bed, and FIG. 5 is a cross-sectional view of the main part of the seedling bed in use. In the figure, symbol 1 is the seedling box, 2 is the clay, 3 is the formwork, and 3a is the bowl. 3b is a protrusion, 4 is a seeding hole, 5 is a seedling bed, and 5a is a mixed soil block seedbed 5a.

Claims (1)

[Claims] Mixed soil 2 made by mixing soil with water is packed in a seedling box 1 to a predetermined height, and inside this seedling box, each bowl is formed into an inverted bowl-shaped aggregate with a truncated pyramid-shaped back surface. After press-fitting the mold 3 for forming a seedbed having a protrusion 3b for forming a seeding hole directed downward at the center of the top of the seedling box 3, the mold 3 is removed and the lower sides are continuous with each other in the seedling box 1. This seedling bed is formed in an independent seedling box in which the upper sides form a seedbed 5a of mixed soil blocks independent from each other and a seeding hole 4 is formed at the center of the top of the seedling box, and the surface side of the mixed soil blocks is densely packed.