JPH0227926A - Light-reflective sheet for field crop cultivation and cultivation of field crop using the same sheet - Google Patents

Abstract

PURPOSE:To accomplish the title cultivation by setting up a light-reflective sheet under field crops to be cultivated in a dangling state and irradiating the lower face of the crops with the resultant reflected light to promote their growth. CONSTITUTION:Grapes 1 are cultivated in a dangling state from a shelf 3. A sheet 6 is horizontally set up under the grapes 1. This sheet 6 is a band- shaped light-reflective sheet, consisting of a white film made from synthetic resin, aluminum foil film or silver film. Therefore, incident rays from above are reflected on the upper surface of the sheet 6 and hit the lower face of the grapes 1 to effect promotion of their growth.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a light-reflecting sheet for cultivating crops and a method for cultivating crops using the light-reflecting sheet, in which the light-reflecting sheet is disposed below suspended crops. , the reflected light is irradiated onto the lower surface of the crops.

(Background of the invention and problems to be solved by the invention) For example, agricultural crops such as grapes and kiwifruit are cultivated in a suspended state, and the growth of these types of agricultural products generally requires sufficient sunlight. However, while the upper surface of crops receives sufficient sunlight, the lower surface is less likely to receive light.
There was a problem that the growth on the lower surface side tended to be insufficient or delayed. In particular, for agricultural crops such as grapes whose leaves grow thickly above the leaves, there is a problem that sunlight is severely insufficient due to the shade of the leaves, making it impossible to grow sufficiently.

Therefore, an object of the present invention is to provide a means that can sufficiently irradiate the lower surface of suspended agricultural products with light.

(Means for Solving the Problems) For this purpose, in the present invention, a light reflecting sheet is disposed below the crops grown in a suspended state, and the reflected light is irradiated onto the lower surface of the crops.

(Function) According to the above configuration, sunlight from above is reflected upward by the light reflecting sheet, hits the lower surface of the crops, and promotes the growth of the crops.

(Example 1) Next, the present invention will be described in detail with reference to the drawings, taking grapes as an example of an agricultural crop grown in a suspended state.

FIG. 1 shows how grapes are cultivated, with 1 the grapes and 2 the leaves thereof being cultivated suspended on a shelf 3. 4 is one support of the shelf body 3, and 5 is a transparent vinyl cover.

Reference numeral 6 denotes a sheet disposed horizontally below the grapes 1, which will be explained next with reference to FIGS. 2 and 3 together.

This sheet 6 is a belt-shaped light reflecting sheet, and is made of, for example, a white synthetic resin film, an aluminum foil film, a silver film, or the like.

This sheet 6 has a continuous mountain shape, and a supporting material 7 such as a wire or string is passed through it, and it can be expanded and stored by expanding and contracting it in the length direction a like an accordion. . The chain line in the partially enlarged view of FIG. 1 shows the state in which the sheet 6 is contracted and moved away to the side. Reference numeral 8 designates an attachment to the support column 4, and reference numeral 9 represents a grip portion at the tip. Therefore, the light incident from above is transmitted to the sheet 6 as shown in FIG.
It is reflected from the upper surface and hits the lower surface of the grapes 1 to promote their growth. Further, when harvesting or managing the grapes 1, the grip portion 9 is held and the sheet 6 is contracted and released.

Further, since the sheet 6 has a glittering light-reflecting property, it has a repellent effect against birds and pests, and can prevent damage from birds and insects. In this case, the sheet 6 is swayed by the wind, making its surface more sparkly, thereby further enhancing the effect of repelling birds and pests. Furthermore, when the seat 6 is not in use, such as during the off-season, the seat 6 is retracted and stored.

(Example 2) In FIGS. 5 and 6, the sheet 11 is wound around a winding tool 12, and can be freely pulled out and stored along support members 13 such as wires disposed above and below it. ing. 1
4 is an operating lever. Therefore, in this case as well, the reflected light from the upper surface can be irradiated onto the lower surface of the grape l.

(Embodiment 3) In the case shown in FIG. 7, the lower surface of the sheet 6.11 is subjected to light-shielding treatment by attaching light-shielding sheets 6a, 11a such as black films.

Therefore, although the light is reflected upward, it does not pass downward, so the ground is covered with eight shades, and weeds can be prevented from growing. Further, as shown in FIG. 8, drain holes 15 for draining rainwater, dew, etc. may be formed in the sheet 6.

Although the above embodiment has been explained using grapes as an example of the agricultural product, it can also be used to grow other agricultural products such as kiwi, as long as they are grown in a suspended manner.

(Effects of the Invention) As explained above, according to the present invention, it is possible to promote the growth of agricultural products by shining sufficient light on the underside of the agricultural products when exposed to sunlight, and it also has the effect of repelling birds and pests. I can give it to you.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a side view during cultivation, Fig. 2 is a perspective view of the sheet, Fig. 3 is a plan view, Fig. 4 is a partial side view, and Fig. 5 is a side view during cultivation. Figure, Figure 6, Figure 7, Figure 8
The figures are a side view and a sectional view of main parts of another embodiment. 1... Crops 6.11... Light reflective sheet

Claims (2)

[Claims] (1) A light-reflecting sheet for agricultural crop cultivation, which is a sheet disposed below agricultural crops cultivated in a suspended state, and at least the upper surface thereof is a light-reflecting surface. (2) A light-reflecting sheet is placed below the crops that are grown suspended in the air, and the light from above is reflected by this light-reflecting sheet, and the reflected light is irradiated onto the bottom surface of the crops. A method of cultivating crops using a distinctive light-reflecting sheet.