JPS5982027A - Laver breeding method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a seaweed cultivation method in which algae and diseases are exterminated as much as possible and seaweed capable of producing high-quality dried seaweed is collected.

Generally, when cultivating seaweed, drying is carried out to exterminate algae and prevent and exterminate diseases, but in the case of floating aquaculture at farms facing the open ocean, drying is not easy and requires a great deal of labor and time. In addition, refrigeration treatment and chemical treatment are sometimes performed to exterminate miscellaneous algae, but these treatments have not been very effective in exterminating so-called green algae.

In the present invention, seedlings are collected from seed nets, shells, etc., and after harvesting net-shaped, box-shaped, etc. seaweed cultured shellfish that are firmly attached to the seaweed being cultured, at the time of sprouting,
When raising seedlings, the seedlings are immersed in a treatment solution with a pH of 0.5 to 4 for 5 to 60 minutes by adding inorganic acids at appropriate times during the cultivation process, and then returned to seawater for continued cultivation to eliminate algae and diseases. The present invention provides seaweed cultivation that is characterized by preventive measures, and in particular, it further enhances the black luster of healthy seaweed, and weeds out seaweed suffering from red rot, etc. Demonstrates outstanding effects ゛Aonori''°
to exterminate.

Next, the specific implementation method of the method of the present invention will be explained in detail.

A seaweed net can be used as a culture vessel.

The seaweed net is made of natural fibers such as hemp and Mukujun, or vinyl chloride,
Synthetic fibers such as polyethylene and polypropylene, or resin-treated natural fibers, are used as the cable material.

Using this seaweed net, collect seedlings based on the general method. For example, put about 60 sheets of this seaweed net into a Zuho bag and collect seaweed seedlings. Seedling collection will be completed in 4 to 5 days. In order to grow these seaweed nets after harvesting, they are tied to a post fence erected in the sea (a probe is tied to the net and seedlings are raised).

It is desirable to perform the seaweed treatment of the present invention once or twice during seedling raising.

For seaweed processing, seaweed nets are pulled onto the ship, and equipment is installed inside the ship.
A seaweed net with seaweed spores firmly attached to it is immersed in a treatment liquid in a liquid tank containing a treatment liquid made by adding an inorganic acid to water to give Pl-10,5~/I.

Examples of monoacid added to the treatment solution include hydrochloric acid, nitric acid, sulfuric acid, and phosphoric acid.

The water in which the inorganic acid is dissolved is seawater or a preparation) 11. The amount of water to be filled with the acid can be determined by considering the strength of the acid, the degree of disease or M algae, or the treatment time, When the treatment time is short, a relatively high moisture treatment liquid is used, and when the treatment time is long, a relatively dilute treatment liquid is used.

Generally, in the case of inorganic acids, P I-1 is in the range of 0.5 to 4, preferably P I-11 to 3.5. Adjust the moisture level of the liquid. In order to adjust PI-1, a PI-1 buffer such as acetic acid and s[-lium acetate] may be present together.

Ammonium chloride as aquaculture fertilizer in the Zaraani treatment solution,
Ammonium nitrate or the like can also be present.

Furthermore, the temperature of the treatment liquid may be at room temperature of 4°C to 20°C.

After the >hi moss net is immersed in the treatment solution once or twice during seedling raising in this way, the nori net is returned to seawater and is harvested after normal marine cultivation.

Even when the seedlings are immersed in the treatment solution once during seedling raising and picked, no red rot disease is observed, the green seaweed dies, and high-quality seaweed with a good black gloss can be harvested. I can do it.

In addition, it is a good thing (C-L) that the seaweed material is made of bamboo and coarse Imp, which have been conventionally used as a seaweed cultivation tool.

In the above example, IJ, ¥'t? ? Although the case of immersion treatment η' in the treatment solution in Il has been mentioned, the present invention also includes J3 (treatment time 1j5 and normal nurturing 9fi process).
Seedlings 112 of Song Seedlings are treated during IAvt, during seedling raising, during cultivation, or after the L+I stage. '+14') i and when necessary.

The pass is applied once or twice during the seedling raising period. Il is placed in row 2, and algae can be exterminated by this. In the aquaculture process, LI is applied depending on the occurrence of miscellaneous algae and diseases, and if a large number of diatoms and blue seaweed arrive, and if red rot occurs, if the treatment according to the present invention is carried out, The algae, green laver, and red-rotted parts are bleached, turn white, and die, and the black luster on the moss on the wire 2C increases.

Side 11jp time, place J! The acidic surface of the p solution indicates the growing condition of the seaweed, for example, whether it is a small bud or a fairly grown one.
11 If the amount of algae that reaches 1flJ is due to human or disease damage, etc.5), make a selection and make adjustments. If the nori has grown considerably, it is usually best to treat the culms for 90 minutes, preferably 5 to 60 minutes, and if the nori is still small, it is best to treat the culms for 5 to 30 minutes. .

Next, examples of the present invention will be described.

Example (1) A treatment solution was prepared by dissolving phosphoric acid in seawater to a depth shown in Table 1, and the treatment solution was mixed with glue nests and old glue. Soak the seaweed net you're wearing with fat 20
After a few minutes, the state of the glue was observed. The results are shown in Table-1.

Table 1 (6) Example (2) Dissolve phosphoric acid in γfjj water to obtain phosphoric acid i1! rU 1
A treatment solution (PH 1, 7) containing 0.0% and 1% of pH was prepared, and the seaweed net with red blister blight was immersed in the treatment solution for 5 minutes, and immediately washed with seawater.

This seaweed net was submerged again in the seawater and the ``C'' treatment was continued. The leaves completely disappeared, the gloss of the black nori increased, the leaves became active, and on the 100th day, black nori of good quality was harvested.

On the other hand, on the untreated) Iσ moss net, the light spots of red blight increased and on the 7th day it was completely infected with bacteria and could not be picked.
lko.

Example (3) Next, a test for the effect of dipping treatment was conducted on the following 1 strip A'1.The results were as shown in Table 3.

Seaweed net collection status 1978 (, f November 17th ()
In column 1, I spread out 5 sheets, and for the green glue test, I used only one sheet that I had left without killing A.

Size of seaweed buds: Average size: 4-5 am (Large buds): Maximum length: 9.2 cm Green seaweed: 5 cm inside and outside immersion Method: Dissolve J' chemicals shown in Table 6 in 500 cc of seawater, adjust the pH to 2, and immerse for a specified period of time.

Soak)? Processing after stirring and immersion for 2 to 5 times during J. Washing with seawater 3 times, and subsequent Pl-
The influence of 1 was eliminated, and washing after staining was carried out with seawater.

Table 53 ■Lisrosin Large buds and green nori were determined with the naked eye, and small moon staining was determined using a microscope.

■ Lisrosin Judgment was made with the base of the leaf as 10% and the leaf part as 90%. Therefore, if the entire leaflet is stained, it will be 90%, and if the base is completely stained, it will be 10% (9).

As can be seen in the above example, adding an inorganic acid to P l-
Seedlings were collected and cultivated seaweed in a treatment solution that was lower than 17.
I @ Sprout seaweed culture tools such as net-shaped or .
When the green seaweed is brought into contact with it by immersion in a suitable water during the cultivation process during cultivation, the necrosis rate of green seaweed is extremely high.

The reason why the Pl-1 of the treatment liquid was set to 4 or less is because the algae extermination effect decreases on a platform with a pH of 4 or more.

According to the method of the present invention, the spores of various algae and green seaweed will wither and die when they come into contact with the inorganic acid in the treatment solution, but black seaweed will not be prevented from propagating even if it comes into contact with the inorganic acid in the treatment solution, so it will have a black luster. Since it is possible to harvest high-quality seaweed, it is possible to produce raw algae and dried seaweed of good quality and grade using these seaweed with a good black luster, and the effect is extremely effective.

Claims (1)

[Claims] Seedlings are harvested and cultivated seaweed is attached to FIJ, and inorganic acids are added at appropriate times during the cultivation process at the time of sprouting, seedling raising, and MIA. -CPH0,5
A method for cultivating seaweed, which is characterized in that it is immersed in a treatment solution of 4 to 4) for 5 to 60 minutes, and then returned to seawater for continued cultivation to exterminate and prevent miscellaneous algae and diseases.