Method for controlling large algae in sea cucumber pond on basis of biotechnology

A kind of biotechnology and pond technology, which is applied in the control field of sea cucumber pond culture environment, especially macroalgae

Inactive Publication Date: 2013-08-14
大连市水产技术推广总站
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] This invention controls the growth of macroalgae by adjusting the light, aiming to solve the negative impact of macroalgae

Method used

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Embodiment Construction

[0015] The present invention is based on the method for controlling macroalgae in sea cucumber ponds based on biotechnology. The optimal method starts to control sea cucumber breeding ponds after icing. The specific process is as follows:

[0016] After the sea cucumber pond has iced, topdressing is immediately applied to cultivate basic phytoplankton. Large algae in sea cucumber farming ponds are generally flooded at high temperatures. The work of controlling macroalgae should start when the sea cucumber farming pond has just melted ice. First of all, after the sea cucumber pond melts the ice, the pond water is generally clear, and the bottom of the pond can be clearly seen. At this time, part (20%-30%) of the sea cucumber pond water needs to be replaced with open sea water, and the sea cucumber pond water should be brought into the seasonal land through the open sea water. Phytoplankton as a source (or artificially put). In the preferred mode, the low-temperature Bacillus sub...

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Abstract

The invention discloses a method for controlling large algae in a sea cucumber pond on the basis of biotechnology. After water temperature rises to 5 DEG C for the first time after early spring and when the large algae grow in the pond or pond transparency is larger than 80cm, bacillus subtilis is evenly sprinkled to the water surface of the pond with the large algae, the microbial content per square meter is 1.5-2.5 billion, diatom breeding fertilizer and fermentation organic fertilizer for promoting bacillus subtilis growth and lowering transparency are evenly sprinkled, so that the pond transparency is lowered to 80cm, and restraint of the large algae is achieved. According to the biological method, the relative transparency is adjusted through alga introduction and matched using of specific inorganic fertilizer, organic fertilizer and bacillus subtilis according to growth laws of the large algae in ponds of different areas at different time nodes so as to restrain photosynthesis of the large algae, and accordingly the goals of controlling rampant growth of the algae and not influencing normal growth of sea cucumbers are achieved.

Description

Technical field [0001] The invention relates to the technical field of sea cucumber breeding, and more specifically, to a method for controlling sea cucumber pond culture environment, especially large algae. Background technique [0002] The harm caused by the influx of macroalgae to sea cucumber farming has been a very headache for farmers in recent years. Enterprises or farmers usually remove them by manual salvage or use herbicides to kill them, which is not only costly and easy to cause pollution, but also has poor control effect. good. [0003] The normal growth of algae must meet three conditions: spores, nutrition, and light. Summary of the invention [0004] The invention controls the growth of macroalgae by adjusting the light, aims to solve the negative impact of macroalgae in sea cucumber cultivation, and achieves the purpose of improving the efficiency of sea cucumber cultivation through a low-cost processing method. The invention is suitable for sea cucumber breeding ...

Claims

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Application Information

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IPC IPC(8): A01K61/00A01G33/00
CPCY02A40/80Y02A40/81
Inventor 刘彤李勃宋晓阳陈文博张澎金文鑫
Owner 大连市水产技术推广总站
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