JPH04173024A - Pot-like form for raising seedling and its production - Google Patents

Abstract

PURPOSE:To obtain the title pot-like form good in seedling growth, causing no growth of fungi, etc., favorable in rooting, also degradable in soil in a short period even if set a seedling together with the pot-like form by forming a mixed composition comprising a specific organic material, pulp, paper strength enhancer and antifungal agent into the pot-like form. CONSTITUTION:The objective pot for raising 1 formed into a pot-like form from a mixed composition comprising an organic material, pulp, paper strength enhancer and antifungal agent. Said organic material is selected from those for nitrogen source such as bark, oil cakes, mushroom culture residues, linter, and residues from food production. The present pot 1 can be obtained by the following method: the above organic material is first pulverized, and the resulting pulverized organic material is then incorporated with pulp, paper strength enhancer, antifungal agent and water to form a liquid composition, which is then formed into a pot-like form.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a pot-shaped molded body for raising seedlings used for example in agriculture, forestry, or home gardening, and a method for producing the same.

(Conventional technology) The plastic pots currently used by farmers, etc.
Seedlings are pulled out and planted one by one, but it is quite difficult to work with such plastic pots for raising seedlings, so the applicant first invented a new liquid composition using organic materials and pulp. We proposed the possibility of a pot for raising seedlings (Japanese Patent Application No. 1-1.14582).

(Problem to be Solved by the Invention) However, when molding a pot-shaped molded body for raising seedlings from the above-mentioned liquid composition, if the particle size of the organic material is large, the miscibility with the pulp is insufficient, resulting in good growth at all times. It was not always possible to obtain a bond for education. Furthermore, when seedlings were raised by filling molded seedling pots with soil, mold and the like were generated, and the results were still unsatisfactory.

Therefore, an object of the present invention is to provide a pot for raising seedlings used for agriculture, forestry, home gardening, etc., in which the seedlings grow well, there is no growth of mold, etc., and the pot can be used for a short period of time even if the whole pot is planted at the time of planting. To provide a pot-shaped molded body for raising seedlings that disintegrates in the soil and has good root retention, and a method for producing the same.

(Means for Solving the Problems) The pot-shaped molded article for raising seedlings according to the present invention is characterized in that a mixed composition of an organic material, pulp, a paper strength enhancer, and a fungicide is molded into a pot shape, The organic materials mentioned above are bark, oil cake, and mushroom cultivation residue.

They are selected from nitrogen sources such as linters and food manufacturing residues.

In addition, the manufacturing method of this pot-shaped molded body for raising seedlings is characterized by the process of finely pulverizing organic materials selected from bark, oil cake, mushroom cultivation residue, linter, and food manufacturing residue, and the process of finely pulverizing organic materials selected from bark, oil cake, mushroom cultivation residue, linter, and food manufacturing residue, and There are two steps: a step of mixing pulp, a paper strength agent, a bactericide, and water to form a liquid composition, and a step of forming this liquid composition into a pot.

In the present invention, it has been found that when an organic material is used after being finely pulverized to, for example, a 20 to 3 C1O mesh, its miscibility with pulp improves and a pot for raising seedlings with good growth can be obtained. Furthermore, by adding an appropriate amount of a fungicide, especially an anti-fungicide, the seedlings do not develop mold or the like during seedling raising, and even after planting, they disintegrate within a short period of time.

The organic material is not particularly limited, but it is preferable to use one having a nitrogen source, such as bark, oil cake, mushroom cultivation residue, linter, or food production residue. Also, composted hake is best. As the oil cake, soybean oil cake, cottonseed oil cake, rapeseed oil cake, sunflower oil cake, sesame oil cake, coconut oil cake, safflower oil cake, palm oil cake, etc., which are the residues obtained by extracting vegetable oil, can be used. Mushroom cultivation residues are those that remain after cultivating and harvesting shiitake, oyster mushrooms, enokitake, nameko mushrooms, maitake mushrooms, pine mushrooms, etc. Specifically, mushroom cultivation residues are those that remain after cultivating shiitake mushrooms, oyster mushrooms, enokitake mushrooms, nameko mushrooms, maitake mushrooms, pine mushrooms, etc. You can use sawdust cultivation residue, etc. Further, as the food production residue, tofu lees, sake lees, rice bran, etc. can be used.

One type of these organic materials is used for boat fishing, but two or more types may be used in combination.

The particle size of the finely pulverized organic material is 20 to 30 as described above.
It is ground to 0 mesh, preferably 30 to 200 meshes, but considering the cost of grinding, it is preferable to use 30 to 200 meshes. The method of crushing organic materials is
Although it is not particularly limited, if it is a dry material such as oil cake, a pulverizer such as a boat can be used. For example, a hammer mill, feather mill, pin mill, jet mill, etc. are used, and for relatively moist materials such as bark and mushroom cultivation residue, a refiner used in the paper making process is used.

Further, as the pulp, pulps derived from coniferous trees, hardwoods, waste paper, etc. can be used, and a mixture of these may be used. The freeness is not particularly limited, and is usually 2.
00 to 45 ml of Cl is preferred. The amount of pulp added is 10 to 85% by weight96 based on the dry weight of the organic material.
, preferably 4[] to 70% by weight.

The amount of water added to the organic material and pulp may be as long as it is enough to form a pot, and is usually 0.5 to the weight of water.
-5% by weight, preferably 1-3% by weight can be added.

The paper strength enhancer includes a dry paper strength enhancer and a wet paper strength enhancer, and any paper strength enhancer that can be used in the papermaking process can be used. For boat fishing, it is effective to use a combination of both.

Examples of the dry paper strength enhancer include starch, vegetable gum, latex resin, polyacrylamide resin, chitosan, and the like. In addition, as a wet paper strength enhancer, melamine
Examples include formamide resin, urea-formaldehyde resin, polyethyleneimine, polyamide polyamine, epichlorohydrin resin, chitozan, and the like. Moreover, these paper strength enhancers are usually used in one type, or two or more types may be used. The amount used is usually 0.005 to 5.0% by weight, preferably 0.05 to 10% by weight, based on the dry weight of the organic material and pulp. Furthermore, when using these paper strength enhancers, it is also possible to add water-dispersible coagulants and adhesives.

As the bactericidal agent used in the present invention, it is preferable to use an antifungal agent, especially for pulp. Examples include cabtane, chlorothalonil, zinc omacin, copper oxyquinoline, etc., and water-dispersible ones are used. Its usage is
0.01 to 3.0% based on the dry weight of organic material and pulp.
0% by weight, preferably in the range from 0.1 to 1% by weight. If the amount used is too small, mold and the like will occur during seedling raising, and if too much is used, the pot will be difficult to disintegrate in the soil, resulting in poor growth after planting. Moreover, the timing of adding the fungicide is not particularly limited, and there is no problem as long as it is before forming into a pot.

The pot for raising seedlings of the present invention can be molded using an ordinary molding machine. Further, the shape and size thereof can be formed into a rectangular shape, a cylindrical shape, etc. as required.

As described above, the seedling growing pot of the present invention can be used for various purposes, such as promoting plant growth, preventing plants from pests, etc.
For the purpose of protecting against pathogenic bacteria or weeds, it is also possible to add fertilizers, pesticides, or soil conditioners such as charcoal, microorganisms, and chitin. Further, the color of the pot in the present invention is not particularly limited, but colors such as black and white are effective in order to absorb or reflect solar heat.

(Example) (Example of pot for raising seedlings) Next, an example of the pot for raising seedlings according to the present invention will be described.

Pot 1 for raising seedlings shown in the drawing is made of 21 kg of used newspaper (dry weight mixed with 300 g of water) that has been crushed in advance with a pulper, and then crushed with a hammer mill to 30 to 200 mesunyu of rapeseed oil cake (manufactured by Honencorp). Mix 9 kg of polyacrylamide resin (trade name: Vostron, manufactured by Arayo Chemical Co., Ltd.) with 0% of the waste newspaper and rapeseed oil cake.
．． 5 weight 96 was added and stirred for 5 minutes. Next, 0.3% by weight of Epoquin resin (trade name Kaimen-557, manufactured by Dick Vercules) was similarly added and stirred for 5 minutes.

Next, 0.2% by weight of a fungicide (trade name: Kabiguard 164FW [active ingredient: chlorothalonil, manufactured by KAI Kasei ■]) was added to the used newspaper and rapeseed oil cake, and the mixture was stirred for 5 minutes. Next, the above liquid composition was carried into the raw material layer of a molding machine equipped with a mold for 36 connected seedling growing pots, and seedling growing pot 1 was formed. The molded seedling growing pot 1 was dried in a dryer and used for a seedling growing test. The seedling growing pot 1 used had an average weight of 2 g each.

The pot 1 for raising seedlings formed by the above-mentioned manufacturing method has a first
As shown in the figure, these are manufactured by connecting several dozen pieces and molded, making it easier to work by placing them on seedling boxes etc.
At this time, by providing dividing means 3 such as perforations or holes in the connecting portion 2, each pot can be easily separated and removed at the time of planting. Also, at the bottom of this
A hole 4 for drainage is formed. Therefore, when growing a large amount of lettuce, celery, broccoli, cabbage, etc., using it in conjunction with a planting machine brings about great advantages in agricultural work.

(Example of method for manufacturing a pot for raising seedlings) Next, a method for manufacturing a pot for raising seedlings according to the present invention will be specifically described.

(Manufacturing method 1 for a pot for raising seedlings) This is specifically explained in the example of the pot for raising seedlings, and is hereinafter referred to as manufacturing method 1.

(Manufacturing method 2 for Seedling Bot) This manufacturing method 2 uses a method similar to the above manufacturing method, changing the organic material from rapeseed oil cake to shimeji mushroom bed cultivation residue, and changing the paper strength enhancer polyacrylamide to chitosan acetate. , I obtained a pot for raising seedlings. At that time, the Shimeji mushroom bed cultivation residue is crushed into 30 to 100 pieces using a refiner, and the dry weight is 15 kg.
We also used 15kg of used newspaper. In addition, chitosan acetate is 0.0% for old newspapers and cymene fungus bed cultivation residue.
After adding 3% by weight, the pH was adjusted to 9 with aqueous ammonia and a seedling growing pot was formed.

(Manufacturing method 3 for seedling-raising pots) In this manufacturing method 3, a seedling-raising pot was also obtained in the same manner as in the above-mentioned manufacturing method 1, except that the sterilizing mold guard 164FW was replaced with oatsite [active ingredient: cabtan, manufactured by Kumiai Chemical Co., Ltd.]. The amount of oatsite added was 396 to the amount of used newspaper and rapeseed oil cake, and seedling growing pots were formed.

(Comparative Example of Seedling Raising Pot) This comparative example was carried out to clarify the characteristics of the manufacturing method according to the present invention, and was carried out using the same method as Manufacturing Method 1 above. A pot for growing seedlings was molded without adding paper strength enhancers or fungicides.

(Experimental results) Place two connected pots (36 pieces) molded according to the above-mentioned manufacturing methods 1 to 3 and the comparative example into the 81st box, and add commercially available Iku-α horticultural soil [Kureha Kagaku Han J. Put the rice cooker up to the 9th leaf in the pot and add lettuce seeds
One pot was placed in each pot, and the above potting soil was then lightly covered.

Place these pots for raising seedlings in a plastic container,
Seedlings were raised from May 30th to May 30th. Irrigated with a sprayer every morning. From the 15th day of raising the seedlings, a 1:1000 solution of Hypo-Fusokus was fertilized every 3 days. When fertilizing, watering was not used, but fertilization was used instead of watering.

Observe every day, May 3rd for each connected pot (36 pieces)
On the 1st, the dry weight of the aboveground part and the dry weight of the underground part were measured, and one average value was calculated.

The results are shown in the attached table later.

In Methods 1 to 3, no abnormalities were observed on the soil surface or the sides of the pots, but in the comparative example pots, there were some red rust-like spots and white cloudy spots. It was seen.

Microscopic examination revealed that these spots were filamentous fungi.

In addition, from the remaining pots for raising seedlings, each manufacturing method, comparative example 1 (
) were taken out one by one and planted in a regular field.

After 3 weeks, the roots of the lettuce plants were dug and observed. In all of the seedling raising pots, the roots penetrated the pot cover and extended into the soil.

On the other hand, during planting, the pot for raising seedlings of the comparative example, which did not contain a paper strength enhancer, became quite soft, making it difficult to work during planting.

Table (Effects of the Invention) Since the present invention uses finely pulverized organic materials, it has good miscibility with pulp, and also contains a bactericidal agent as well as a paper strength enhancer.
In particular, by adding an appropriate amount of anti-fungal agent, there is no mold growth during seedling raising, excellent water retention and air permeability, easy to grow, and when planting, the entire pot can be planted, and the soil can be grown in a short period of time after planting. A pot-shaped type for raising seedlings that collapses inside and has good root retention!
[Two bodies are Wj'd.

In this way, the pot for raising seedlings has excellent water retention and air permeability, allowing for good growth of seedlings. In addition, since the seeds disintegrate in the soil over a period of time, they can be planted in individual pots after raising seedlings.

Furthermore, in the plastic pots currently used by farmers, etc., seedlings are pulled out and planted one by one, but the pot for raising seedlings of the present invention is much simpler to work with and requires less labor.

Furthermore, pots for raising seedlings are manufactured and shaped by connecting multiple pots in the middle, and by providing perforations and holes in the connecting parts, each pot can be easily divided into individual pots for easy planting. When raising a large amount of seedlings of vegetables, etc., it can be used in conjunction with a planting machine, which has great advantages in agricultural work, such as reducing labor costs.

[Brief explanation of drawings]

The drawings show an embodiment of the pot for raising seedlings according to the present invention, and FIG. 1 is a plan view, and FIG.
-A line enlarged sectional view. 1... Pot for raising seedlings, 2... Connecting part of the pot. 3...Dividing means. 2 Patent Applicants: Lee/S La Chemical Industry Co., Ltd./3 Molecules

Claims (3)

[Claims] (1) A mixed composition of organic material, pulp, paper strength enhancer, and bactericide is molded into a pot shape, and the organic materials include bark, oil cake, mushroom cultivation residue, linter, food manufacturing residue, etc. A pot-shaped molded body for raising seedlings, characterized in that it is selected from those having a nitrogen source. (2) A plurality of pot-shaped pots according to claim 1 are formed in succession, and the connecting portions of the pots are provided with dividing means to facilitate division. A pot-shaped molded body for raising seedlings. (3) Finely pulverize organic materials selected from bark, oil cake, mushroom cultivation residue, linter, and food manufacturing residue, and mix pulp, paper strength enhancer, fungicide, and water with this finely pulverized organic material. A method for producing a pot-shaped molded body for raising seedlings, characterized by forming a liquid composition into a pot-shape.