JP3107195B2 - Tree-introduced thick base material spraying method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of a method of spraying a thick base material into which trees are introduced.

[0002]

2. Description of the Related Art In recent years, as one of slope revegetation methods, a spraying method of forming a thick organic soil on a slope by spraying a vegetation base material mixed with seeds, fertilizers, soil amendments, and the like. Has become popular.

In this spraying method, in many cases, a net is laid in advance on a slope, and a vegetation base material is sprayed on the slope through the net by a spraying machine, so that a rocky ground, hard soil, or non-soil can be obtained. Even in bad lands, more stable thick organic soil can be uniformly formed. For example,
No. 99931 describes an example of such a greening method.

[0004]

According to the above-mentioned spraying method, seeds of wild grass species, pasture species, woody species, etc. are blended in a vegetation base material, and it is possible to realize a variety of various greening. I have. However, woody species are susceptible to pressure from other seeds, and in particular, often fail to germinate and grow sufficiently under pressure from foreign grass species with strong growth potential.

Recently, in order to improve the landscape and to form a more stable and firm slope, a greening method capable of growing tree seeds in a sound manner has been required. At the same time as solving the problem, surface soil stability has become a major problem.

The present invention has been made in view of such circumstances,
It is an object of the present invention to provide a tree-introduced thick-substrate spraying method that can germinate and grow tree seeds soundly and prevent erosion from the early stage of the greening method.

[0007]

According to the present invention, means for solving the above-mentioned problems are constituted as follows. That is, in the invention according to claim 1, in the spraying method for greening the slope by spraying the vegetation base material on the slope, the germination is relatively fast, and to some extent withstands competition with the exotic herb. Tree seeds irrespective of the germination time if the temperature and moisture conditions are good, and 250-500
A mixture of exogenous herbaceous seeds, which generate about this number / m ² , organic materials, water retention materials, soil improvement materials, and fertilizers blended so that 2-7 g / m ² of the pure N component elutes in the latter half of the construction The vegetation base material is sprayed on the slope.

[0008] 250 exotic herb seeds having strong germination and viability
Suppressed so that 500 present / m ² about generation number, and pure N component elution amount of nitrogen fertilizer in construction late year 2-7
g / m ² eluted to grow some suppression of the foreign herbaceous seed with depression obtain it in so that, it is possible to reduce the influence of the pressure on the tree seeds, thereby relatively early healthy germinated trees seeds・ Can be grown.

According to a second aspect of the present invention, the vegetation base material according to the first aspect of the present invention is characterized by mixing a native species herb.

A third aspect of the invention is characterized in that a slow-acting fertilizer is mixed into the vegetation base material according to the second aspect of the invention.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a method for spraying a tree-introduced thick base material according to the present invention will be described below. First, as tree seeds to be blended with the vegetation base, for example, weasel, Yamahagi, Komatsunagi, False acacia, Albacore, Mukuge, etc. In addition, it is a variety that can be germinated at any time if the conditions of temperature and moisture are good.

The exotic herbaceous seeds to be blended in a small amount with respect to these tree seeds include Kentucky 31 Fesc, Weeping Lovegrass, Creeping Red Fescue, Vermuda Glass, Red Top, etc.
All of them have strong germination and viability, and the expected number of occurrence is 250-500
The number is preferably about 1 / m ² .

[0013] Others to be incorporated into the vegetation base are:
There are organic materials such as bark compost and peat moss, water retention materials such as perlite and vermiculite, and soil improvement materials.
High control (trade name: Chisso Asahi Fertilizer Co., Ltd.), Green Map (trade name: Nippon Godo Fertilizer Co., Ltd.), PK Custom (trade name: Taki Chemical Co., Ltd.) And so on.

The mixing ratio of the above-mentioned tree seeds and exotic herb seeds is shown in Table 1, for example, and the seeding amount W can be obtained from the following equation. Here, W: seeding rate (g / m ² ) G: expected number of seeds (number / m ² ) S: number of seed grains per g B: germination rate (%) P: purity (%) N: method thickness correction Coefficient N ₁ : Location condition correction N ₂ : Construction time correction. Incidentally, N is the blowing thickness of soil dressing, N ₁ is the hardness or the gradient of the slope, N ₂ is spring, summer, by taking into consideration each season fall like and to determine the appropriate correction value.

[0015]

[Table 1]

The weight ratio of each component of the fertilizer that elutes a small amount of nitrogen fertilizer is, for example, N: 5 g / m ² , P: 30
g / m ^2, K: preferably 10g / m ^2, Jun N components eluted in construction late year such that 2~7g / m ² formulation is desirable. For example, the compounding amount of each fertilizer and the component ratio (weight) of N, P, and K per 1 m ^{3 of the} vegetation base material are shown in Table 2, and the elution of the N component when the vegetation base material containing such a compound fertilizer is used. Table 3 shows the test data (the amount of the pure N component eluted per m ² ).

[0017]

[Table 2]

[0018]

[Table 3]

From Table 3, it can be seen that the pure N component elutes by about ² to 7 g / m ^{2 by the second} half of the construction. A vegetation substrate containing such a fertilizer, i.e., a tree seed that does not matter at any time of germination if germination is relatively early and can withstand competition with a foreign herb to some extent, and if the temperature and moisture conditions are good, By spraying a small amount of exotic herbaceous seeds, organic materials, water retention materials, soil improvement materials, etc., and a vegetation base material mixed with the above-mentioned fertilizer on the slope, the initial stage of construction is a slope with an exotic herb that germinates and grows quickly. While preventing surface erosion, and
To control the leaching and growth of exotic herbaceous species by restricting the fertilizers eluted at the beginning, to germinate and grow tree seeds soundly, and to achieve early stable greening in a pattern rich in tree-based changes. The trees are deeply rooted, and the slopes are solid, preventing landslides and landslides.

Further, Local species herbaceous vegetation substrate, such as thin, mugwort, by blending Medohagi like,
Further changes can be given to the greening pattern. These herbs do not exert pressure on the tree seeds, and may be added at an appropriate ratio.

Further, by blending these vegetation base materials with a slow-acting fertilizer that does not promote pressure, the fertilizer can be maintained and trees can grow more healthy.

As for the mode of spraying the vegetation base material, not only a method of laying a net or other mesh on the slope in advance and spraying the net from above but also, for example, laying a vegetation mat on the slope. Spraying from above, forming a concrete frame, spraying into the frame, or spraying directly on the slope, regardless of the mode of spraying. It goes without saying that the spraying method of the invention can be implemented.

[0023]

As described above, according to the tree-introduced thick-layer base material spraying method of the present invention, exotic herbaceous seeds can be prevented from erosion by 250-500
And suppressed example Rukoto in so that such a present / m ² about generation number, pure N component facilities <br/> Engineering late year in so that elutes 2～7G / m ²
By adopting the fertilizer was suppressed obtain such formulations,
Since the influence of pressure on the tree seeds is reduced, the tree seeds can be germinated and grown soundly and early stable greening can be achieved in a pattern rich in tree-based changes. And the deep roots of the trees make the slopes stronger, and can prevent landslides and landslides.

Further, by blending native species of herbs with the vegetation base material, it is possible to further change the greening pattern without applying pressure to the tree seeds.

Furthermore, by blending a slow-acting fertilizer that does not increase the pressure in these vegetation base materials, the fertilizer can be maintained and the tree can be grown more healthy.

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-7-155055 (JP, A) JP-B-6-99931 (JP, B2) (58) Fields investigated (Int. Cl. ⁷ , DB name) E02D 17/20 102

Claims (3)

(57) [Claims] 1. A spraying method for greening a slope by spraying a vegetation base material on the slope, the germination is relatively fast, it can withstand competition with a foreign herb to some extent, and the temperature and moisture conditions are high. If the seeds are good, tree seeds regardless of the germination time, exotic herbaceous seeds that generate about 250 to 500 seeds / m ² , organic materials, water retention materials, soil improvement materials, and N component is ² to 7 g / m ²
A tree-introduced thick-layer base material spraying method characterized by spraying a vegetation base material mixed with a fertilizer compounded so as to be eluted on a slope. 2. The method for spraying a tree-thick base material according to claim 1, wherein a native species herb is mixed into the vegetation base material. 3. The method according to claim 1, wherein a slow-acting fertilizer is mixed into the vegetation base material.