JP2002262671A - Pot for plant cultivation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a low-cost pot for plant cultivation, with which a waste treatment of cellulosic material can be carried out and the waste of cellulosic material can be decomposed even if allowed to stand in the ground and which has no bad influence on growth of plant, such as obstruction of rooting, etc. SOLUTION: This pot for plant cultivation is obtained by mixing a cellulosic material with charred wood 3 and a binder into a shape of cultivation container to give a pot main body 2 and adding pyroligneous acid or pyroligneous acid of bamboo to the pot main body 2. The cellulosic material is one kind or a mixture of two or more kinds of waste paper, paper making waste, wood waste, thinned wood, sawmilling waste and another plant processed waste. The charred wood is one kind or two or more kinds of charred wood of bamboo, charcoal, charred wood of chaff and activated carbon.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates mainly to raising seedlings,
The present invention relates to a pot for plant cultivation that is optimal for a cultivation mode involving transplantation.

[0002]

2. Description of the Related Art A conventional pot for plant cultivation, which is used in a cultivation form involving seedling raising and subsequent transplantation, is a relatively thin, soft synthetic resin bottomed cylinder having a height of about 10 cm and an open top. Those having a diameter of about 8 cm have been frequently used. As the synthetic resin, a resin obtained by adding calcium carbonate, aluminum hydroxide, or the like as an inorganic filler to a resin such as polyvinyl chloride, polyethylene, polypropylene, or polystyrene is molded. The functions of the conventional pot for plant cultivation include the prevention of drying at the time of raising seedlings, the shielding of light from the roots, the need for excavation and root cutting of the root of the plant at the time of transplantation, and the prevention of damage to the roots, In addition, the present invention is to prevent the soil from dropping during transportation.

However, conventional pots for plant cultivation are rather disadvantageous in terms of the durability characteristic of synthetic resin, and what is removed after transplantation becomes garbage in fields, fields, cultivation houses, furrows, work places, and the like. The result is that it is left alone. In order to solve this, a type that is decomposed by light or microorganisms has also been proposed (for example, JP-A-2000-209953, JP-A-2000-83485, Utility Model Registration 3061568, Utility Model Registration 3
009210). However, this has resulted in high costs. On the other hand, waste of cellulosic materials such as cardboard and other waste paper, papermaking waste, and wood waste is increasing, and there is a problem of recycling, that is, its effective use. JP-A-09-205895 is an example of an attempt to solve this problem and the problem of degradability of a pot for plant cultivation. However, this method uses a nonwoven fabric, and is disadvantageous in that the cost is increased.

[0004]

Therefore, although it is stable during the seedling raising period and during the transplanting operation, it can be decomposed even if it is transplanted as it is and left in the ground, which inhibits rooting. We studied low-cost pots for plant cultivation that do not adversely affect the growth of plants, such as those, and that allow waste treatment of cellulosic materials. For the same purpose, there is also an example of a planting tool using waste paper of Utility Model Registration No. 3009210, but the present inventor further found that the plant growing pot itself was positively involved in plant growth, Considered to give.

[0005]

As a result of studying the above problems, a pot for plant cultivation was formed by mixing and molding charcoal with a cellulosic material. In addition, a binder is mixed with the cellulosic material and charcoal to form a cultivation container, and the pot body further contains wood vinegar or bamboo vinegar.

The term "cellulosic material" as used herein refers to waste paper (papermaking waste or waste paper) derived from paper, wood, bamboo, etc., wood waste, thinned wood, sawmill, or other processing waste used in plants. It is processed into a body or fibrous form (defibrated paper). In particular, the use of waste paper is inexpensive and preferable for waste disposal.
These cellulosic materials are used alone or in combination of two or more. Recycled pulp derived from waste paper, old corrugated paperboard, old magazines and the like can be used, and these can be used alone or in combination of two or more. These pulp and other raw materials may be defibrated by an appropriate method. What method, equipment,
The device can be used.

The charcoal is preferably one or a mixture of two or more selected from bamboo charcoal, charcoal, rice husk charcoal, activated carbon and the like. It is blended in the cellulosic material as particles or powder of several mm or less. By the presence of charcoal in the pot body, the countless pores (porous) of the charcoal and the microorganisms that propagate in it increase the soil content of oxygen and the like emitted by the microorganisms, contributing to plant growth . Charcoal is preferably added in an amount of 5 to 25% based on the cellulosic material.

The binder is preferably one that can be disintegrated in soil, and preferably one that disintegrates by biodegradation, hydrolysis, or the like. Examples of such a degradable resin include starch, carboxymethylcellulose, sodium alginate, casein, ethylene vinyl acetate modified starch polymer, polyvinyl alcohol, lactone resin, etc., which are decomposed by bacteria or the like in soil. The binder improves the shape in the defibrated state and the pot body after molding of the powdered cellulosic material, and serves to prevent bamboo charcoal, charcoal, rice husk charcoal, activated carbon, etc. from being detached from the pot body. . The binder is preferably added in an amount of 5 to 15% based on the cellulosic material. A pot excellent in breathability and water retention can be obtained.

[0009] The shape of the cultivation container in the present invention is as follows.
Includes all pots such as bottomed cylinders, bottomless cylinders, square prisms, etc., especially those with a bottomed cylindrical round opening, about 10 cm in height, about 8 cm in upper opening diameter, square It has an opening and is most suitable for a so-called disposable pot having a height of about 5 to 8 cm and an upper opening diameter of about 5 to 8 cm. These may be of a type in which a plurality of connected parts are separated and used. It is advisable to add a mold release agent to the molding. As the mold release agent, a metal salt of stearic acid or lauric acid, and a metal salt selected from the group consisting of calcium, magnesium, zinc, aluminum and strontium may be used. it can.

The pot body preferably contains wood vinegar or bamboo vinegar. Wood vinegar or bamboo vinegar is obtained as a wood vinegar or bamboo vinegar during the production of charcoal or bamboo charcoal. Originally uses a strong bactericidal action, but it is clarified that when used after being diluted 200-500 times with water, it has an effect of promoting the propagation environment of useful microorganisms (EM bacteria) from the bactericidal action . This is thought to be due to the fact that a substance called acetyl coenzyme is produced from acetic acid by plants and microorganisms and changes into components necessary for plants and microorganisms. Wood vinegar or bamboo vinegar is 150-800 times, preferably 200-5
The liquid diluted 100 times may be added at the raw material stage before molding, but the liquid diluted as described above may be sprayed on the inside of the pot body.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the following examples. Example 1 A mixture of 70 parts of crushed cardboard waste paper, 100 parts of bamboo charcoal powder, and 100 parts of a mixture of 10 parts of starch and 500 parts of water was kneaded so as to be almost uniform, followed by molding. For molding, this molding material is filled into a cavity with the parting surfaces of the fixed mold and the movable mold in close contact with each other, and the temperature is from 120 ° C to 220 ° C.
And heated. The height of the molded body is about 10c in the cavity
m, the upper circular opening diameter was 8 cm, and the thickness was 1.5 to 2 mm.

FIG. 1 shows the state of the pot after the mold release. In a cup-shaped pot 1 having a drain hole at the bottom, charcoal 3 is scattered on the wall surface of a pot body 2 mainly made of paper fiber. The soil was put into the pot 1 to such an extent as to slightly rise from the edge of the upper opening, and water was applied thereto. For comparison, mini-tomato seeds were similarly sown using a similarly shaped pot made of the same raw materials without blending bamboo charcoal powder. Germination was the same after 5 days, but the seedlings grew faster and more vigorously when the pots of the present invention were used as they grew. One month after transplanting to the field and comparing the number and size of the mini tomatoes that grew three months later, the number of mini tomatoes that grew using the pot of the present invention was larger and larger overall.

Example 2 A ratio of defibrated paper fiber derived from waste paper: charcoal: polyvinyl alcohol: water was 7: 1.5: 1: 4, and zinc stearate was added to 100 parts of the total amount. Was used as a molding material, and the temperature of the fixed-side mold and the movable-side mold was set to 190 ° C. for molding. The mold for molding has a cavity in which a pot of a type in which a plurality of connected molds are separated and used is obtained.

FIG. 2 shows the state of the obtained pot connector 4. Thin, lightweight, high rigidity, no warpage, no shrinkage. When the pot 1 is separated into a single unit, the pot 1 is opened in a square shape. It also has the characteristic that it is biodegraded and disintegrated in soil in 2-3 weeks by the action of bacteria. The porosity of the charcoal 3 scattered on the wall has a favorable effect on plant growth. Even after the pot body collapses, the charcoal 3 continues to exert a favorable effect on the plant while repeatedly absorbing and desorbing moisture.

The inner wall of the pot 1 was sprayed with a 300-fold dilution of bamboo vinegar obtained in the bamboo charcoal production process. When the pot 1 was left to dry for a while, the soil was poured into the pot 1 so as to slightly rise from the edge of the upper opening, and water was applied. When the soil surface was a little dry, lettuce seeds were sown. For comparison, lettuce was similarly formed using a pot formed in the same manner using the same raw material without blending charcoal powder, and a pot having the same structure as that of the present example without spraying 300 times dilution water of bamboo vinegar. Seeds. Germination was the same after 6 days, but as the plants grew, those using the pot of this example grew the fastest in the seedlings, and those using the pot without bamboo vinegar treatment, and the charcoal was the slowest. This was an example of using a pot having no. The plant was transplanted to the field 20 days later, and the growth of lettuce was observed 2 months later. The one using the pot of this example was the largest. Next, an example using a pot without bamboo vinegar treatment, and the smallest one was an example using a pot without charcoal.

[0016]

The pot for plant cultivation of the present invention is stable during the seedling period on the ground and during the transplanting operation,
If it is transplanted as it is and left in the ground, it can decompose and collapse. The use of a biodegradable binder and the use of a cellulosic material degrade the pot body in the ground, so there is no adverse effect on plant growth such as inhibiting rooting. In addition, it is possible to provide a pot for plant cultivation that can process waste materials of cellulosic materials, is inexpensive in raw materials, and low in cost. Since the pot for plant cultivation itself has a wall surface having charcoal, it actively participates in the growth of the plant and has a favorable effect. In addition, those in which a small amount of wood vinegar or bamboo vinegar is contained in the pot body have a further favorable effect on plant growth.

[Brief description of the drawings]

FIG. 1 is a perspective view of a pot for plant cultivation according to an embodiment of the present invention.

FIG. 2 is a perspective view of a pot for plant cultivation according to another embodiment.

[Explanation of symbols]

 1 pot 2 pot body 3 charcoal 4 pot connected body

Claims (4)

[Claims] 1. A plant cultivation pot formed by mixing charcoal with a cellulosic material and molding. 2. A plant cultivation pot formed by blending a charcoal and a binder with a cellulosic material and forming it into a cultivation container. 3. A plant cultivation pot in which charcoal and a binder are blended with a cellulosic material, and wood vinegar or bamboo vinegar is contained in a pot body having a cultivation container shape. 4. The cellulosic material is one or a mixture of two or more selected from waste paper, paper waste, wood waste, thinned wood, sawdust, and other plant waste, and the charcoal is bamboo charcoal, charcoal,
The pot for plant cultivation according to any one of claims 1 to 3, wherein the pot is one or a mixture of two or more selected from rice husk charcoal and activated carbon.