JPH0376510A - Water-retaining sheet for plant-growing mat - Google Patents

Abstract

PURPOSE:To obtain a water-retaining sheet for a plant-growing mat having sufficiently high water retainability and effective in preventing the invasion of weeds by forming a number of water-retaining recesses on the upper surface of a water-retaining sheet and opening a number of through-holes in the sheet. CONSTITUTION:A number of water-retaining recesses 8 are formed on the upper surface of a sheet made of foamed plastic, etc., and a plurality of through holes 7 are opened in the sheet to drain excess water. A plurality of protrusions 9, 10 are formed on the upper and the lower surfaces of the sheet to secure spaces above and below the sheet. The water-retaining sheet 5 produced by the above process is laminated with a lower fleece layer 2 made of a decomposable natural fiber, a decomposable plastic foil 3 having a number of holes 4 and an upper fleece layer 1 to obtain a plant-growing mat 11.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a water-retaining sheet for a plant growing mat that allows plants to grow even without a humid soil layer.

[Prior Art] As this type of mat, a mat for growing rolled lawns is known.

When this growing mat is used, rolled lawns can be grown even without a humid soil layer.

For this purpose, plant seeds are sown on the surface of the mat, and water and nutrient solution are applied to allow the plant seeds to germinate and grow.

[Problems to be Solved by the Invention] However, the conventional plant growing mats described above do not have sufficient water retention, and when grown on soil, weeds invade and inhibit plant growth. There was a problem.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a water-retaining sheet that provides a mat for growing plants with sufficient water-retaining properties and prevents weeds from entering the mat.

[Means for Solving the Problems] In order to achieve the above object, a first claim of the present invention is characterized in that a large number of water retaining recesses are formed on the upper surface and a large number of through holes are provided. The second claim is characterized in that a plurality of convex portions for forming gaps are provided on the upper surface and the lower surface.

[Function] Since the injected water is stored in the water-retaining recesses of the water-retaining sheet, water is absorbed from the roots of growing plants, promoting their growth, and eliminating the need for frequent watering.

Further, by providing convex portions for forming gaps on the upper and lower surfaces of the water retaining sheet, air circulation is improved and plant growth is further promoted.

[Example] Hereinafter, one embodiment of the present invention will be described based on the drawings.

In the figure, 1.2 is jute felt, for example. upper and lower fleece layers consisting of erodible natural fibers such as wood wool, cellulose, flax, hemp or rapeseed, 3 with erodible plastic foils placed between the fleece layers 1.2;
A large number of holes 4 are provided.

Reference numeral 5 denotes a water-retaining sheet made of foamed plastic or the like provided on the lower surface of the lower fleece layer 2, and the upper surface thereof has a number of water-retaining recesses 6 formed therein, as well as a plurality of through holes 7 for draining excess water. It is a provision.

Further, a plurality of convex portions 9 and 10 are provided on the upper and lower surfaces of the water retaining sheet 5, respectively, so as to create a gap between the lower fleece layer 2 and the ground.

Note that the protrusions 9 and 10 may be rail-shaped protrusions.

By laminating the above materials, a roll-shaped plant growing mat as shown in FIG. 1, for example, is formed.

Therefore, when seeds 8 are sown on the upper surface of the upper fleece layer 1 as shown in FIG.
It passes through the eyes of the fibers and gradually descends. When water is poured from above the upper fleece layer 1, moisture is supplied to the seeds 8 and they germinate. In addition, the injected water is poured into plastic foil 3
Excess water passes through the lower fleece layer 2 through the holes 4 and accumulates in the water retention recesses 6 of the water retention sheet 5, and excess water is discharged through the through holes 7.

During the growing process, the roots of the plant are inserted into the holes 4 of the plastic foil 3.
through and into the lower fleece layer 2 and take root. In this case, since an appropriate amount of water is stored by the water retaining sheet 5, water is absorbed by the roots and growth is promoted, and there is no need for frequent watering.

This plant growing mat 11 has the property of being assimilated with the soil except for the water retaining sheet 5, so after achieving the purpose of germination and growth, the water retaining sheet 5 can be removed and transplanted to a desired location.

Note that the mat 11 is not only made of grass but also wheat.

It is suitable for growing grains such as rice and beans, edible vegetables such as daikon radish, and ornamental plants.

Further, by forming the mat 11 into a small size, desired plants can be grown at home, for example, on a balcony, an open stand, or a terrace, without using a humid soil layer.

The fleece layer 1.2 may then be simply a piece of cloth or paper.

[Effects of the Invention] As explained above, when the water retaining sheet of the present invention is used in a mat for growing plants, an appropriate amount of water is stored, so water is absorbed from the roots of growing plants and their growth is promoted. At the same time, there is no need for frequent water injection.

In addition, when growing the mat on soil, the water-retaining sheet prevents weeds from entering the fleece layer, and the blood-retaining sheet prevents the mat from deforming due to the unevenness of the soil. is carried out smoothly.

Furthermore, by providing convex portions for forming gaps on the upper and lower surfaces of the water retaining sheet, air circulation is improved and plant growth is further promoted.

[Brief explanation of drawings]

FIG. 1 is a partially sectional perspective view showing an embodiment of a plant growing mat using the water-retaining sheet of the present invention, and FIG. 2 is an enlarged perspective view showing the state in which the mat is used. 1-... Upper fleece layer, 2... Lower fleece layer, 3
...Plastic foil, 4...Hole, 5...Water retention sheet, 6...Water retention recess, 7...Through hole, 8...Seed,
9.10... Convex portion, 1 1... Mat for plant growth. Patent applicant Preme Japan Co., Ltd.

Claims (2)

[Claims] (1) A water-retaining sheet for a plant growing mat, characterized in that a large number of water-retaining recesses are formed on the upper surface and a large number of through holes are provided. (2) The water-retaining sheet for a plant growing mat according to claim (1), wherein a plurality of convex portions for forming gaps are provided on the upper surface and the lower surface.