JPH025723Y2 - - Google Patents

Description

[Detailed explanation of the invention] <Technical field> This invention relates to a cultivation frame for soft white green onions, specifically called white green onions, Tokyo green onions, etc., in order to cultivate green onions that are soft white and have long and thick leaf sheaths. This article relates to a cultivation frame used to make the leaf sheaths soft white by covering them with rice husk etc.

<Prior Art> The above-mentioned method for cultivating soft white green onions involves covering the leaf sheaths of the green onions with rice hulls to block sunlight during the growth of the green onions, so that the leaf sheaths do not turn blue but become soft white.

In the conventional cultivation method, as shown in Fig. 6, a tunnel D formed of a metal frame F and agricultural black PVC film f, etc. is placed between the green onions N that are being grown, and at the same time Surround the outer periphery with plywood, etc., spread rice husks M inside it, and add green onions N.
By filling in the surrounding area, the soft whitening of green onion N was promoted.

However, forming the tunnel D using the metal frame F or the film F is extremely troublesome, time consuming, and costly, and in order to form the tunnel D, the spacing between the green onions N must be kept quite wide. Also,
Once tunnel D is removed when harvesting green onion N,
There is also the problem that the film f etc. cannot be reused and is not economical. Furthermore, in the conventional method, green onions N that are embedded in rice husks M and are being grown tend to bend easily, reducing the commercial value.

<Purpose> Therefore, this invention aims to eliminate the drawbacks of the above-mentioned conventional techniques, and provide a cultivation frame suitable for growing green onions, which allows easy whitening of green onions and has good cultivation efficiency.

<Structure> In order to achieve the above object, the structure is entirely plate-shaped made of synthetic resin foam, with sloped surfaces that become lower toward both left and right sides at the upper end, and a central portion. A space is formed over the entire length in the longitudinal direction, and sprinkler channels are formed at appropriate intervals along the longitudinal direction to communicate the space with both the left and right outer surfaces.

<Example> Next, an example of this invention will be described below with reference to the drawings.

FIG. 1 shows the entire cultivation frame 1, which is made of a synthetic resin foam such as expanded polystyrene, and has an elongated rectangular plate shape. The cultivation frame 1 is divided into two parts from the center on the left and right sides, each having a substantially identical half body 10, 1 formed separately.
0 in combination, but it is also possible to implement a structure in which the entire structure is integrally molded.

The upper end of the cultivation frame 1 is formed with inclined surfaces 20, 20 which are inclined toward both the left and right sides and become lower over the entire length in the longitudinal direction, and has a triangular shape with a pointed center at the upper end. Next, a groove-shaped space 30 is formed in the center of the cultivation frame 1 over the entire length in the longitudinal direction and opens to the lower end surface. Further, on the lower end surface of the cultivation frame 1, thin semicircular groove-shaped sprinkler channels 31 communicating with the space 30 and both left and right outer surfaces are arranged at appropriate intervals along the longitudinal direction.

Next, on the contact surfaces of the left and right halves 10, 10, rectangular fitting uneven parts 11, 12 that can be fitted into each other are formed.
It is formed over the entire length in the longitudinal direction. Furthermore, as shown in FIG. 2, on the fitting convex portion 11 on one side, small protrusions 13 in the form of narrow ridges are arranged along the longitudinal direction in the center of the upper and lower horizontal planes at appropriate intervals along the longitudinal direction. is forming. In addition, in the fitting recess 12 on the opposite side, as shown in FIG. 3, a small groove 14 in the shape of a narrow recess is formed at a position facing the small protrusion 13 at the center of the upper and lower horizontal planes. There is.

When forming the cultivation frame 1 by combining the left and right halves 10, 10, as shown in FIG. At the same time, by utilizing the elasticity of the foam forming the cultivation frame 1, the small projections 13 are fitted and locked in the small grooves 14, thereby fixing the two halves 10, 10.

Next, a method of using the cultivation frame 1 described above will be explained with reference to FIG. 5.

First, green onions N are planted in rows at appropriate intervals in the cultivation area E, and a cultivation frame 1 is arranged between each of the N rows of green onions to partition each N row of green onions. Note that a watering hose H is inserted into the space 30 of the cultivation frame 1. This hose H is made of vinyl chloride resin or the like, and has a large number of small through holes formed at appropriate intervals on its outer periphery.

Next, a burying material such as rice husk M is placed between each cultivation frame 1 to embed the leaf sheaths of green onion N. Cultivation is carried out in this state while promoting the growth and softening of green onion N. In addition, during cultivation, use hose H to close space 3.
Water or fertilizer solution is supplied into the space 30 and the sprinkler channel 31 to water or fertilize the green onion N from the rice husk M to the green onion N, thereby achieving good growth of the green onion N.

Also, during cultivation, the height of rice husk M to be introduced is increased as the green onion N grows to ensure that the leaf sheath part of the green onion N is covered.

As the synthetic resin foam forming the cultivation frame 1 described above, in addition to polystyrene, foams made of polyethylene, polypropylene, and other various synthetic resins can be freely used.

Next, regarding the shape of the cultivation frame 1, the illustrated rectangular plate shape is convenient for use by adding cultivation frames 1 one after another and for manufacturing and handling.For example, the approximate dimensions are 1000 mm length x 400 mm height x This can be done with a material approximately 100mm thick. However, the shape and dimensions of the cultivation frame 1 can be changed as appropriate depending on the dimensions of the green onion N to be cultivated and the cultivation conditions.

Next, it is preferable to form the space 30 as large as possible as long as the strength, rigidity, etc. of the cultivation frame 1 can be sufficiently ensured, from the viewpoint of overall lightness and cost. The shape of the space 30 may be the illustrated elongated rectangular groove, or may be a U-shaped groove or other groove shape. Further, the space 30 may be a groove-like space with an open bottom end, or a hole-like space 30 with a closed bottom end. Furthermore, as the sprinkler channel 31 that communicates the space 30 with the left and right outer surfaces, in addition to being formed in the shape of a groove at the lower end of the cultivation frame 1 as shown in the figure, the sprinkler channel 31 may be formed in the lower part of the cultivation frame 1 by a through hole. .

Next, in the illustrated embodiment, the two halves 10, 10 are molded in advance, and both halves 10, 1
0 are assembled and fixed by fitting and connecting with the fitting uneven parts 11 and 12, rather than integrally molding the entire cultivation frame 1.
It is easy to mold and the cost is low. That is, when molding a complicated shape such as the space 30 in one-piece molding, the depth and dimensions of the mold become large and the mold cost becomes high, but by dividing the mold into two parts, the mold cost can be reduced. In addition, if the molding depth is too deep in one-piece molding, there will be variations in the flow of heating steam and cooling water, which will have a negative impact on the quality of the finish and also worsen the mold release property. However, if it is divided into two parts, there will be less variation and the release will be worse. The moldability also improves. Furthermore, in integral molding, there is a limit to the height of the cultivation frame 1 to be molded due to the structure of the mold.
If it is divided, a mold can be constructed with the cultivation frame 1 lying on its side, and it becomes possible to manufacture molds with a height that exceeds the conventional molding limit. Furthermore, by dividing the space into two parts, it is possible to create spaces 30 with complex shapes that could not be molded in one-piece molding due to constraints such as undercuts.
, sprinkler channels 31, etc. can also be molded, making it extremely flexible. However, in practical terms, it is of course possible to use the entire cultivation frame 1 that is integrally molded.

The halves 10, 10 may be directly joined and fixed with adhesive or metal fittings, etc., but by forming the fitting uneven parts 11, 12, the halves 10
0 and 10 can be accurately positioned with respect to each other, and the bonding strength is also increased. The shape of the fitting uneven parts 11 and 12 may be a square, a wedge shape, a dovetail joint, or any other type of dowel, tenon, or joint structure. In addition to forming only one piece over the entire length in the longitudinal direction, it can be formed intermittently in the longitudinal direction, or it can be freely arranged at appropriate locations on the contact surfaces of the halves 10, 10.

The illustrated rectangular fitting uneven portions 11 and 12
In this case, small protrusions 13 and small grooves 14 are formed on the upper and lower horizontal surfaces, and by fitting and locking each other, the fitting uneven parts 11 and 12 are prevented from coming off, and the half body is 10, 10 are fitting uneven parts 11, 1
It can also prevent half body 1 from shifting in the direction along 2.
Although it is preferable to ensure the connection and fixation of 0 and 10, in practice, if the shape of the fitting uneven parts 11 and 12 is such that it is difficult to easily remove or move after fitting, the small projections 13 and Formation of the small groove portion 14 is unnecessary. Note that the shapes of the small protrusions 13 and the small grooves 14 can also be square, circular, or any other arbitrary shape.

<Effect> Cultivation frame 1 of this invention configured as above
According to , because the tunnel is entirely made of synthetic resin foam, it is lightweight and easy to handle, and it is also easy to install in the cultivation area, making it much easier to use and cheaper than conventional tunnels made of metal frames or films. becomes.

In addition, because it does not take up the width of a conventional tunnel, the spacing between the rows of green onions can be narrowed.
According to this idea, it could be carried out at 150mm. Therefore,
The actual cultivation area of a certain area of field is 40%
This increases cultivation efficiency and has the effect of lowering the overall cultivation cost. Moreover, cultivation frame 1
It is easy to remove and reinstall, has good workability, and has excellent durability, making it possible to use it repeatedly.

Since the cultivation frame 1 of this invention is made of foam, it has high insulation properties and good heat retention, so it is particularly suitable for cultivation in cold regions.For example, it can be used suitably even in the cold weather around April in Hokkaido. Ta.

Furthermore, by installing the vertical plate-shaped cultivation frame 1 relatively close to the green onions N, it is possible to grow the green onions N straight without bending, which improves the finished quality of the green onions N and the product quality compared to conventional tunnels. The value increases.

Next, by forming the inclined surfaces 20, 20 on the upper end of the cultivation frame 1, when rice husk M is put in during use, the rice husk M does not accumulate on the cultivation frame 1, and can be smoothly separated from side to side. This makes the work of adding rice husk M easier.

In addition, by forming a space 30 in the center of the cultivation frame 1, it is possible to reduce the overall weight and improve heat insulation. 31 can be watered or fertilized left and right, making it possible to very effectively supply water to green onions N buried in rice husk M and the like.

As described above, it is possible to provide a cultivation frame that is suitable for cultivating soft white onions and has excellent various practical effects, such as being inexpensive to manufacture.

[Brief explanation of drawings]

The figure shows an example of this invention.
The figure is a perspective view, Fig. 2 is an enlarged perspective view of the fitting convex part, Fig. 3 is an enlarged perspective view of the fitting recess, Fig. 4 is a sectional view of the fitting part, and Fig. 5 is a sectional view of the used state. , FIG. 6 is a sectional view of a conventional example. 1... Cultivation frame, 10... Half body, 11, 12...
Fitting uneven portion, 20... Inclined surface, 30... Space, 3
1...Sprinkle channel, N...Green onion, M...Rice husk.

Claims (1)

[Claims for Utility Model Registration] 1. The whole is in the shape of a plate made of synthetic resin foam, and the upper end has sloped surfaces that become lower toward both the left and right sides, and the center part has a plate shape that extends over the entire length in the longitudinal direction. A cultivation frame for soft white green onions, characterized in that a space is formed therein, and sprinkler channels communicating the space with both left and right outer surfaces are formed at appropriate intervals along the longitudinal direction. 2 The entire body is divided into two halves on the left and right from the center, and a concave-convex fitting part is formed on the abutting surfaces of both halves, and a concave-convex fitting part that can be freely fitted to each other is formed in a part of the concave-convex fitting part. The cultivation frame for soft white green onions according to claim 1 of the above-mentioned utility model registration claim, which forms flexible small protrusions and small grooves.