JPH0131619Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a sandbag that can be strengthened by vegetation.

As this type of sandbag bag, the one shown in, for example, Japanese Utility Model Publication No. 8105/1983 has been provided. This is a part of the bag made of woven fibers.
It is made by sewing together pieces of cloth with plant seeds and fertilizer attached to them, and if you fill the bag with soil and layer it, the seeds will germinate and the plants will grow. The elongated roots can strengthen the sandbag and prevent it from collapsing.

However, in the above-mentioned sandbag bags, the seeds and fertilizer are attached to the same surface, which causes problems such as seed germination, and the actual situation is that the bags are still insufficient in strengthening the sandbags. According to the inventor's study, the cause is as follows. That is, as is well known, seeds of plants consume their own protein sources during the germination period and do not require fertilizer, but fertilizer is required during the growing period. However, in conventional sandbag bags, the seeds and fertilizer are stuck in the same position, so when the fertilizer dissolves due to rainfall, the concentration of fertilizer in the soil around the seeds increases excessively, causing the seeds to break down. Fertilizer failure causes poor germination. Therefore, in practice, attempts are made to prevent fertilizer damage by significantly limiting the amount of fertilizer impregnated, but there are limits to obtaining the necessary fertilizer effect. In addition, because the fertilizer is located in the same position as the seeds, that is, on the top side of the sandbag, it is easily washed away from the soil by rainwater, and by the time plants germinate and reach the growing season, only a small amount of fertilizer is attached. Therefore, it is difficult to secure the necessary fertilizer effect.

The present invention was developed based on the above considerations, and its purpose is to provide a sandbag bag that can sufficiently strengthen the sandbag by improving the germination rate and growth condition of seeds. The bag is characterized by the fact that seeds are attached to the inner surface of one side of the bag, and fertilizer is attached to the inner surface of the other side.

An embodiment of the present invention will be described below with reference to the drawings. The bag body 1 is constructed by folding a base material made of roughly woven synthetic resin fibers in half and sewing three sides together. A large number of seeds 2 and a water retention agent 3 made of vermiculite or the like are attached to the inner surface of one side of the bag body 1 by a spray method using, for example, poval (polyvinyl alcohol) as a binder, and the inner surface of the other side is coated with a sufficient amount of water. A similar amount of fertilizer 4 and water retention agent 3 are applied using a similar spray method. The surface of the fertilizer 4 is coated with an acrylic resin emulsion into which gypsum, calcium carbonate, or talc can be mixed prior to mixing with poval. This is to prevent salting out of the fertilizer 4 and to delay its dissolution into rainwater so that the fertilizer 4 has slow-acting properties.

Now, with the sandbag constructed in this manner, the inside is filled with earth and sand, the opening edge is tied with string 5, and the seeds 2 are
As shown in FIG. 3, a large number of them are laminated with the side with the attached side facing up, and are constructed, for example, as a slope. When rainwater penetrates into the sandbag due to rainfall after construction and the inside becomes moist, seeds 2
germinates and grows through the grains of the bag body 1, and the fertilizer 4 gradually dissolves on the lower surface side. In the case of the present invention, since no fertilizer is added around the seeds 2, even if a large amount of fertilizer 4 is added, germination failure due to fertilizer interference will not occur, and germination will not be adversely affected by fertilizer fermentation gas. In addition, especially in this embodiment, since the water retention agent 3 is attached together with the seeds 2, the seeds 2 can be maintained at a humidity condition suitable for germination even when there is no rain for a long period of time. On the other hand, fertilizer 4 is located on the bottom side of the sandbag where it is not directly exposed to rainwater, so it does not easily wash away even in repeated rainfall, but gradually dissolves and permeates into the soil inside the sandbag. . When the germinated plants 6 grow to a certain extent and begin to extend their roots into the soil inside the sandbag, the fertilizer is absorbed by the roots, and the growth is further promoted by the fertilizer added in a sufficient amount in advance. The roots grow to become entangled within the sandbag, thereby strengthening the sandbag and preventing it from collapsing. Moreover, in the sandbag according to the present invention, the roots of the plants 6 tend to extend toward the lower surface of the sandbag, which has more fertilizer, and form a cross-sectional shape within the sandbag, which further strengthens the sandbag. Effective.

In addition, in this embodiment, in addition to the seeds 2 and the fertilizer 4, a water retention agent 3 is also added, but this is not necessarily necessary, and if necessary, an auxiliary agent such as soil improvement for acidity adjustment may be added. may be attached.

In addition, the present invention is not limited to the embodiments described above and shown in the drawings. For example, the warp on the side of the bag body 1 on which the seeds 2 are attached may be made different from the other warps to make the seed attachment surface. It can be implemented with changes within the scope of the gist, such as making it easy to distinguish.

In summary, the sandbag bag of the present invention is characterized in that seeds are attached to the inner surface of one side and fertilizer is attached to the inner surface of the other side, and as a result, fertilizer damage during the seed germination period is prevented. In addition to improving the germination rate, it is also possible to increase the amount of fertilizer added, so that sufficient fertilizer can be absorbed during the growing season, resulting in good growth conditions, and the soil bags are strengthened by the roots of plants. This has the excellent effect of effectively achieving the following.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a perspective view of a sandbag bag, FIG. 2 is an exploded view of the same, and FIG. 3 is a perspective view showing the sandbag in use after being filled with earth and sand. In the drawing, 1 is the bag body, 2 is the seed, 4 is the fertilizer, 6
is a plant.

Claims (1)

[Scope of utility model registration request] 1. A sandbag bag made of woven or braided fibers, characterized in that seeds are attached to one inner surface of the bag and fertilizer is attached to the other inner surface.