JP3474854B2 - Vegetation base material and method for producing the same - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a vegetation base material used for greening slopes and the like, and a method for producing the same.

[0002]

2. Description of the Related Art In recent years, in order to protect the global environment,
A recycling method has been devised that makes effective use of the felled trees and roots that are generated during construction work such as dams and construction. As one of them, there is a slope revegetation method in which felled trees and roots are used as a vegetation base material (growth base material) to green the slope. The conventional slope revegetation method that uses felled trees and roots is to grind the felled trees and roots into chips, mix soil and fertilizer into vegetation base material, and mix seeds to the slopes. Although it was a spraying method, the amount of felled trees and roots that can be reused just by crushing is small. In addition, it was necessary to add a fertilizer to promote germination and growth of plants.
Therefore, a method of composting crushed felled trees and root stocks has been devised, whereby many felled trees and root stocks can be reused and the amount of fertilizer added can be reduced.

[0003]

The composted chips of felled trees and roots can be used as a vegetation base material in a few months. However, the composting chips 2-3 months after the start of composting have a temperature of around 50 ° C. due to continuous fermentation.
Humidity is about 50-60%. Seeds for spraying day 2
About a day before, it is mixed with the vegetation base material and kneaded,
If the temperature and humidity of the vegetation base material are high, the germination activity may decrease, which is a problem.

An object of the present invention is to provide a vegetation base material having a temperature suitable for seed germination and its production.

[0005]

In order to solve the above problems, the invention according to claim 1 is, for example, as shown in FIG. 1, in which water and auxiliary materials are added to chips obtained by crushing felled trees and roots after composting, a vegetation base material manufactured by mixing the scene generation earth and the bonding agent and seed, characterized in that after composting of the chip, formed by mixing the seeds with a mixture of urea 5 I am trying.

According to the first aspect of the invention, after the chips of the felled tree and the root stock are composted and then mixed with urea, the urea is hydrolyzed by the water in the compost. Since the hydrolysis of urea is an endothermic reaction, urea takes away the heat of fermentation during composting. Therefore, the temperature of the composted chips can be lowered, and the germination of seeds added thereafter is not hindered.

A second aspect of the present invention is the vegetation base material according to the first aspect, wherein the urea powder or aqueous solution is added.

According to the second aspect of the invention, the fermentation heat of the chips can be efficiently absorbed by adding urea in the form of powder or aqueous solution.

According to a third aspect of the present invention, felled trees and roots are crushed into chips, water and auxiliary materials are added to the chips for composting, and the composted chips together with on-site soil and a bonding agent. It is characterized in that the seeds are mixed after mixing the urea.

According to the third aspect of the present invention, the felled tree and roots are made into chips, and water and auxiliary materials are added to form compost to use the just-cut chips and roots as vegetation base materials. Than many felled trees and roots can be reused, and plant germination and
The amount of fertilizer added for growing can be reduced. Further, by adding urea before mixing the seeds, it is possible to absorb the moisture in the compost and heat due to the fermentation in the hydrolysis reaction of urea, and prevent the germination activity of the seeds from being reduced. it can.

The invention according to claim 4 is the method for producing a vegetation base material according to claim 3, characterized in that the powder or aqueous solution of the urea is added.

According to the fourth aspect of the present invention, by adding urea in the form of powder or an aqueous solution to the composting chips, it is possible to efficiently absorb the heat of fermentation during composting.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 shows a biaxial mixer 1 for kneading composted chips with on-site soil and a cement when manufacturing a vegetation base material. On the side of the biaxial mixer 1, a tank 2 that can store water is provided. Is provided. The two-axis mixer 1 is connected to the tank 2 and the water in the tank 2 is
The axial mixer 1 is provided with a spray member 3 capable of spraying. The water 4 in the tank 2 dissolves the powdery urea 5 as needed. Basically, the optimum amount of urea 5 added is about 5% (total dry matter) of total nitrogen in compost (chips).
It is preferably in the range of about 1 to 9%.

First, trees and roots that have been felled and rooted from the construction site are transported to a temporary storage site near the site and crushed into chips of an appropriate size. Then, water and auxiliary materials are added to the formed chips and composting is performed in the compost yard. During composting, sprinkle water and cut back, etc.
To ensure that good quality compost can be produced.

After the composting is completed, the composting chips are put in the biaxial mixer 1 shown in FIG. And mix with the biaxial mixer 1. And at this time,
Powdered urea 5 is put on a mixture of composting chips, soil generated on site, and a bonding agent, and well mixed by a biaxial mixer 1. The amount of urea 5 to be added is the above-mentioned amount depending on the amount of the mixture such as composting chips and the temperature. If necessary, the water 4 contained in the tank 2 provided in the biaxial mixer 1 may be sprayed by the spraying member 3.

After that, the seeds of the plant are kneaded with the mixture of the composted chips or the like to form a vegetation base material, which is then transported to a spraying yard. The vegetation base material transported to the spraying yard is put into a spraying device (not shown) and sprayed on the slope.

As a method of adding urea, for example, urea 1
You may make it spray a 0-20% aqueous solution. Further, powdered urea may be added after being packed in a pack or capsule soluble in heat or water.

As described above, according to the vegetation base material and the method for manufacturing the same of the above-described embodiment, by composting the cut tree and root stock that are made into chips, many felled tree and root stock are reused as the vegetation base material. It is possible to make effective use of resources. Also, with the composting tip,
Since nutrients for germination and growth of plants can be supplemented, the amount of fertilizer to be added can be reduced, which is economical. Also, by adding urea 5 before mixing the seeds, a hydrolysis reaction of urea which is an endothermic reaction occurs,
It can absorb the heat from the fermentation of the chips. Therefore, since the temperature of the composting chips used for mixing the seeds is lowered, the germination activity of the seeds is not reduced.

In the above embodiments, the addition of urea was performed at the same time as mixing the composted chips with on-site soil, but seeds are added after the chips have been composted. It may be up to the time, and it may be mixed with the soil generated at the site.

[0020]

EFFECTS OF THE INVENTION According to the invention described in claim 1, since urea is accompanied by endotherm when hydrolyzing, the water in the compost is removed by mixing it with the chips of the composted felled tree and root stock. At the same time, it takes away the heat of fermentation during composting. Therefore, since the temperature of the chips is lowered by adding the seeds after adding urea to the chips, the germination activity of the seeds is not decreased.

According to the second aspect of the present invention, the heat of fermentation during composting can be efficiently absorbed by adding urea in the form of powder or aqueous solution.

According to the third aspect of the present invention, by adding water and auxiliary materials to the cut tree and root stock that have been made into chips, and composting, it is possible to increase the number of reclaimed tree and root stock. In addition, the amount of fertilizer added for promoting the germination and growth of plants can be reduced, which is economical. Furthermore, by mixing urea with the composted chips before mixing the seeds, urea causes a hydrolysis reaction accompanied by endotherm, so the temperature and humidity of the composted chips can be lowered, and the germination vitality of the seeds can be improved. Do not reduce.

According to the fourth aspect of the invention, by adding urea in the form of powder or an aqueous solution to the composting chips, the fermentation heat of the chips can be efficiently absorbed.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a biaxial mixer portion showing a state where urea is mixed with a composting tip as an example to which the present invention is applied.

[Explanation of symbols]

1 mixer 2 tanks 3 Spraying member 4 water 5 Urea

Front page continuation (72) Inventor Yoshiteru Dobashi 1-20-10 Toranomon, Minato-ku, Tokyo Nishimatsu Construction Co., Ltd. (72) Toshio Oguri 1-20-10 Toranomon, Minato-ku, Tokyo Nishimatsu Construction Co., Ltd. (72) Inventor Seiji Matsuura 1-20-10 Toranomon, Minato-ku, Tokyo Nishimatsu Construction Co., Ltd. (56) References JP-A-2000-204558 (JP, A) JP-A-58-162214 (JP, A) ( 58) Fields investigated (Int.Cl. ⁷ , DB name) A01G 1/00 A01C 1/04

Claims (4)

(57) [Claims] 1. A vegetation base material produced by adding moisture and auxiliary materials to chips obtained by crushing felled trees and roots to form a compost, and then mixing on-site generated soil with a bonding agent and seeds. A vegetation base material, which is obtained by mixing urea and then mixing seeds after composting the chips. 2. The vegetation base material according to claim 1, wherein the urea powder or aqueous solution is added. 3. Fractured trees and roots are crushed into chips, water and auxiliary materials are added to the chips for composting, and the composted chips are mixed with on-site soil and a cement together with urea, A method for producing a vegetation base material, which comprises mixing seeds. 4. The method for producing a vegetation base material according to claim 3, wherein the powder or aqueous solution of urea is added.