A device for cultivating laver in deep water and its application method

Abstract

The invention discloses a device for culturing porphyra tenera in a deep water area. The device comprises a plurality of pairs of brackets, cylindrical foamed buoys, and a cultivation curtain for culturing porphyra tenera; two cylindrical foamed buoys are bound to a pair of brackets through vinylon ropes; holes are drilled in two ends of each bracket; a tied rope passes through the through holes in two ends of each pair of brackets to fix the brackets; two ends of the cultivation curtain are tied to brackets which are adjacent to each other and in different pairs; the plurality of brackets, the foamed buoys bound on the bracket, and the cultivation curtain tied on the brackets form a row of porphyra tenera culturing float raft. According to the device, the full-floating raft type culturing technology is adopted, and thus the interference of float sludge and wild alga can be obviously reduced, and the disease incidence can be greatly lowered down; the device is suitable for cultivation in the deep water area; the net can be sunned actively to avoid freezing injury; bamboo brackets for fixing the foamed buoys are wrapped with a layer of fiberglass materials, and therefore, the strength of the traditional bamboo poles can be improved, the corrosion of seawater to the bamboo poles can be reduced, and as a result, the service life of the bamboo poles can be obviously prolonged, and as a result, the cost can be decreased.

Description

technical field [0001] The invention relates to a laver cultivation device, in particular to a laver cultivation device suitable for deep sea areas, and belongs to the technical field of laver cultivation. Background technique [0002] Seaweed is one of the most popular marine vegetables. More than a thousand years ago, coastal residents in my country began to eat seaweed and consciously multiplied seaweed by clearing reefs, which was the earliest "vegetable altar farming method". This method has been used until the 1950s and 1960s, and even some islands along the coast of Fujian still retain this ancient method; but this method is poor in controllability, and the source of seedlings is completely dependent on nature, and the production and promotion of seaweed are very limited. . [0003] Modern laver cultivation technology was established in the 1960s, mainly including three cultivation methods: "pillar type", "semi-floating raft type" and "full floating raft type", which...

AI Technical Summary

Problems solved by technology

[0004] "Full floating raft" is a cultivation method adopted in sea areas far from the shore and deep sea water. Its disadvantage is that the net curtain cannot dry out the dew, and it is easy to grow algae, which affects the quality of emergence and grown vegetables.

Japan and South Korea use cold storage nets and acid immersion to solve the problem of algal blooms such as Enteromorpha and diatoms to a certain extent, and become their mainstream cultivation methods, but this method is labor-intensive and chemical treatment may have a negative impact on the environment

Chinese patent 201310398694.4 In order to improve the defect that the traditional full-floating raft cultivation technology laver curtains cannot dry dew, an improved full-floating raft facility was invented, which mainly uses a trapezoidal float with grooves on it. When drying the net, it will support The bamboo poles of the laver curtain are flipped into the grooves of the trapezoidal floats

However, this method needs to place the laver net curtains on the trapezoidal floats one by one, which is very labor-intensive and difficult to promote in a large area.

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