JPH034719A - Cultivation sheet for agricultural product - Google Patents

Abstract

PURPOSE:To promote growth or coloring of agricultural products by laying a sheet composed of an upper and a lower films having elastic hollow protruding parts formed from a fluorescent substance for cultivating the agricultural products on a ridge, etc., and cultivating the agricultural products. CONSTITUTION:A sheet 1 for cultivating agricultural products prepared by mounting a lower film 2 and an upper film 3 on the top surface side of the lower film 2, forming at least the upper film 3 in the above-mentioned films 2 and 3 from a fluorescent substance and further protruding elastic hollow protruding parts 4 dotted in the upper film 3 is laid on a ridge (F) in a greenhouse. Agricultural products, such as strawberry, are planted thereon and the aforementioned sheet 1 is irradiated with moonlight, electric lamps, etc., at night to carry out cultivation. Thereby, growth of the crops is promoted and nocturnal insect pests can be repelled.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a sheet for cultivating agricultural crops, which is particularly useful for promoting the growth of agricultural crops such as strawberries and melons, not only during the day but also at night. This invention relates to sheets for cultivating agricultural crops.

(Prior Art) When cultivating agricultural products such as strawberries and melons in the ridges of greenhouses, sheets are laid to ensure heat retention and protect the ground surface of the fruit bunches.

As such a sheet, for example, Japanese Patent Application Laid-Open No. 63-248323
As disclosed in Japanese Patent Application Laid-open No. 1-98424, it consists of two upper and lower synthetic resin films,
It is known that the upper film is provided with elastic hollow protrusions dotted and protruding from the upper film. By changing the color of the upper and lower films, unique effects can be obtained.In particular, if at least the upper film of the upper and lower films is made light-reflective, it is possible to The light is reflected by the film and hits the underside of the fruit bunch, promoting its growth and coloring, and also has the effect of repelling pests such as aphids.

(Problems to be Solved by the Invention) However, the above-mentioned conventional cultivation sheets, especially sheets in which at least the upper film is made of a light-reflecting material, reflect sunlight during the daytime, so that the growth of fruit clusters is hindered. Although it has the effect of promoting color change and repelling pests, it has the problem that these effects cannot be expected at night because it cannot reflect weak light such as moonlight or electricity inside the greenhouse.

Therefore, the present invention can be applied not only during the day but also at night.
An object of the present invention is to provide a sheet for cultivating agricultural crops that can promote the growth of agricultural crops such as strawberries and melons.

(Means for Solving the Problems) For this purpose, the present invention consists of a lower film 2 and an upper film 3 attached to the upper surface side of the lower film 2, and an elastic hollow protrusion 4 is provided on the upper film 3. In the sheet 1 for cultivating agricultural products, which is provided in a protruding manner, the above-mentioned film 2.3
At least the upper film 3 is made of a fluorescent material.

(Function) According to the above structure, at least the upper film 3 of the films 2.3 is made of fluorescent material, so at night,
When the cultivation sheet 1 is irradiated with moonlight or electricity inside the greenhouse, fluorescence is emitted from this fluorescent material and hits the lower surface of the crops, promoting their growth and coloring, and the fluorescence repels nocturnal pests. .

(Example 1) Next, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view of a sheet for cultivating agricultural products, and this cultivation sheet 1 includes a lower film 2 and a lower film 2.
It consists of an upper film 3 attached to the upper surface side of the. The upper film 3 has cylindrical elastic hollow protrusions 4, 4...
A large number of protrusions are provided in a scattered manner, and a space T1 is secured inside the protrusion 4, and a space T2 that serves as an air circulation area is secured between the protrusions 4. ing. film 2
, 3 are made of flexible synthetic resin such as polyethylene or polypropylene, and the protrusion 4 is formed by partially protruding the upper film 3. Both films 2 and 3 are made of fluorescent material.

FIGS. 2 and 3 show how strawberries are cultivated in a greenhouse by laying the sheet 1 on the ridges F.

At night, when moonlight or electricity in the greenhouse is applied to Sheet 1, fluorescence is emitted from the fluorescent material of Sheet 1, which hits the lower surface of Fruit Bunch A, promoting the growth of Fruit Bunch A, and promoting the growth of Fruit Bunch A.
promotes coloration. Generally, many pests are nocturnal, but if the sheet 1 is made of a fluorescent material as described above, the fluorescence can also have the effect of repelling nocturnal pests. In addition, during the daytime, the air in the spaces Tl, Tl... in the hollow protrusion 4 is warmed by solar heat, and a high heat retention effect is obtained. Due to the soft heat transfer from 4, the strawberry bunch A that is in contact with this can be kept warm. Also, if the ground temperature is high,
The air inside the protrusion 4 is warmed by the ground temperature through the sheet 1, and the heat is transferred to the fruit bunch A. Moreover, since air circulation is ensured by the space T2, the surface of the fruit bunch A can be brought into sufficient contact with fresh air to promote its growth and coloration of the lower surface of the fruit bunch A.

In addition, the fruit bunch A can be held elastically by the protrusion 4 to prevent the fruit bunch A from being flattened or damaged, and furthermore, water W such as dew or rain accumulates in the space T2, so the fruit bunch A can be prevented from being flattened or damaged. This can prevent corrosion caused by contact with water W (see especially Figure 2).

The color of the lower film 2 may be non-fluorescent, and an intermediate film may be interposed between the upper film 3 and the lower film 2 for reinforcement or the like.

In addition, the dimensions of the sheet and the shape and size of the protrusions can be freely set depending on the variety of agricultural products. For example, in the case of large melons, the sheet is approximately 30C11 square, and a large hemispherical shape is used. A protrusion may be provided.

(Example 2) In FIG. 4, B is a grape, which is grown suspended on a shelf 6. 7 is a support for the shelf body 6, and 8 is a transparent vinyl cover. Reference numeral 9 denotes a belt-shaped sheet disposed horizontally below the grapes B, and is made of fluorescent material. This sheet 9 has a continuous mountain shape, through which a supporting material 10 such as a wire or string is passed, and can be expanded and stored by expanding and contracting it in the longitudinal direction a like an accordion. II is the attachment to the pillar 7, 12
is the grip at the tip. Therefore, when the sheet 9 is irradiated with moonlight at night, fluorescent light is emitted upward and hits the lower surface of the grapes B, promoting their growth and coloring, as well as repelling nocturnal pests. Further, when grapes are harvested or when not in use, the grip portion 12 is held and the sheet 9 is contracted and stored.

In the above embodiment, grapes were used as an example of the agricultural product, but any agricultural product that is grown suspended in the air can be used.
It can also be used to grow other crops such as kiwi.

(Effects of the Invention) As explained above, the present invention consists of a lower film 2 and an upper film 3 attached to the upper surface side of the lower film 2, and the upper film 3 is dotted with elastic hollow protrusions 4. In the sheet 1 for cultivating agricultural products, which is provided with a protruding structure, at least the upper film 3 of the above-mentioned films 2 and 3 is made of fluorescent material, so that when the sheet 1 is irradiated with moonlight or electricity in the greenhouse at night, Fluorescence is emitted from the fluorescent material of the sheet 1 and hits the lower surface of the crops, promoting their growth and coloring, and also repelling nocturnal pests.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a perspective view of a sheet for cultivating agricultural crops, Fig. 2 is a partial sectional view of the sheet in use, Fig. 3 is a side view of the same, and Fig. 4 is a perspective view of a sheet for cultivating agricultural crops. The figure is a side view of another embodiment. ■... Sheet for cultivating agricultural crops 2... Lower film 3... Upper film 4... Elastic hollow protrusion

Claims (1)

[Claims] A crop cultivation sheet comprising a lower film and an upper film attached to the upper surface of the lower film, the upper film having elastic hollow protrusions dotted and protruding from the upper film,
A sheet for cultivating agricultural products, characterized in that at least the upper film of the above film is made of a fluorescent substance.