JP2614179B2 - Manufacturing method of molding soil - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the improvement of artificial soil used for hydroponics and the like.

[0002]

2. Description of the Related Art Conventional artificial cultivation materials include fibrous materials such as urethane and rock wool, granular materials such as sand, artificial grit or charcoal, and organic materials such as peat moss. is there.

[0003]

However, since urethane and rock wool are inorganic and do not rot, they are easily polluted when discarded after use. In particular, rock wool contains pollutants, which may accumulate after dumping and cause pollution.

Another disadvantage is that fine pieces of rock wool continue to drift in the greenhouse and adhere to the skin of workers working in farming, causing skin diseases accompanied by strong pruritus.

[0005] In addition, granules such as sand and artificial gravel do not have a water retention capacity, and peat moss is difficult to form.

Accordingly, an object of the present invention is to provide an inexpensive artificial soil that can be formed into an arbitrary shape by using a pure plant material that is harmless to the human body and the environment, and that has a water retention ability.

[0007]

In order to achieve the above object,
In the present invention, starch starch is prepared by boiling starch in water having a volume ratio of 5 to 15 times that of starch, and the starch paste is added to 5 to 10 parts of 10 parts of coconut shell powder obtained by grinding coconut shell. The mixed material of the coconut shell and the paste thus obtained is put into a mold and dried and solidified at 5 to 50 ° C. to produce a molded soil.

[0008] If the ratio of water to starch is less than 5 times, the viscosity of the paste is too large to mix uniformly with the coconut husk powder. Conversely, if it exceeds 15 times, it is difficult to dry for solidification. It takes a long time and the efficiency deteriorates. In addition, if the mixing ratio of starch paste to coconut shell powder is less than 5 parts, the binding power of the paste is insufficient to solidify sufficiently, and if it exceeds 10 parts, it excessively binds and grows the root of the plant. Cause trouble.

If the drying temperature is too low, the drying time is too long. If the drying temperature is too high, the starch paste may be deteriorated.

[0010]

In the present invention, since the starch paste is mixed with the coconut shell powder, the coconut shell powder is well bound and solidified only by drying, and its shape is not distorted. Further, since starch paste is diluted with water and added to the coconut shell powder, even if it is solidified, the molded soil of the product is rich in elasticity and suitable for growing plants. In addition, since both coconut powder and starch paste are vegetable, they gradually rot and become fertilizer for plants, and are safe for the human body and do not pollute the environment. Coconut shell, which is a raw material, is inexpensive because it is sufficient to use garbage collected from coconut oil and can be easily manufactured.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described.

First, the remaining coconut shell from which the coconut has been taken out is dried and finely ground.

Next, glue is prepared. The material may be any of fresh flour, flour, starch or rice flour. For example, 6 liters of water is added to 0.5 liters of rice flour and heated with stirring for about 10 minutes to produce starch paste. On the way, rice husk or rice ash plant ash is added to starch paste by 1 to 3 times.
% By weight.

Then, 10 parts of the finished starch paste and 10 parts of coconut shell powder are well mixed with stirring to obtain a mixed material in a muddy state. During the stirring and mixing process, plant ash of rice husk or rice straw is added in an amount of 1 to 3% by weight based on the mixed material.

Next, this mixed material is packed in a pot mold having a length of 10 cm and a depth of 5 cm, and dried in the sun all day and night. After drying, the mold is released to obtain a molded soil having a predetermined shape.

The shape of the mold can be appropriately designed for a bed or the like.

[0017] Plant ash has the effect of preventing mold propagation in starch paste.

[0018]

According to the present invention, the coconut shell of vegetable fiber is formed by binding with starch paste, and is formed only of organic substances. Therefore, there is no risk of containing carcinogens such as asbestos and rock wool. , Not only harmless and safe to the human body,
Starch such as rice flour, which is the raw material of the glue, is dissolved and becomes fertilizer for the plant to be cultivated. The artificial soil buried in the soil after use is entirely organic and can be returned to the soil in the same manner as ordinary soil.

Furthermore, since all are easily available, such as coconut shells, starch paste, and ash, not only are they easy to make, but they also make effective use of coconut shell wastes, It has the advantage of low unit price and resource recycling.

Claims (2)

(57) [Claims] 1. A starch paste is prepared by boiling starch in water having a volume ratio of 5 to 15 times that of the starch paste, and 5 to 10 parts of the starch paste is added to 10 parts of a coconut shell powder obtained by grinding a coconut shell. A mixed material of coconut shell and glue obtained in a mold, dried at 5 to 50 ° C. and solidified to form a molded soil. 2. A method for producing a molding soil, comprising adding 1 to 5% by weight of plant ash to the mixed material of coconut shell and paste according to claim 1.