Method for controlling macroalgaes in stichopus japonicas culture pond

A technology for cultivating ponds and seaweed, applied in seaweed cultivation, botany equipment and methods, climate change adaptation, etc., can solve the problems of large seaweed overgrowth, sea cucumber poisoning, slow growth, etc., and achieve optimization and pond environment with simple steps , high work efficiency

Inactive Publication Date: 2014-02-26
WENDENG AQUATIC PROD TECH PROMOTION STATION
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  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the deficiencies of the prior art, and solves the problems of excessive propagation of large algae in sea cucumber culture ponds, causing sea cucumber poisoning, peeling, swollen mouth, not going to the beach, slow growth and other diseases, r

Method used

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Embodiment

[0017] Embodiment: a kind of method of controlling macroalgae in the sea cucumber culture pond, comprises the following steps:

[0018] (1) Every spring, in early and mid-April, when the water temperature in the sea cucumber breeding pond reaches 5-7°C, apply inorganic fertilizer in the pond for fertilization and water, and apply 5-7 grams of inorganic fertilizer per mu. Inorganic fertilizer is a carbon-free compound , the inorganic fertilizer is a mineral fertilizer, which can be sodium nitrate, potassium dihydrogen phosphate, etc., or urea, compound fertilizer, etc.; make the density of unicellular algae in the pond reach 500,000 cells / ml;

[0019] (2) In early May, when the pond water temperature rises to 10-15°C, apply 5-7 grams of inorganic fertilizer per mu and 3-5 milliliters of low-temperature-resistant beneficial bacteria preparations. The beneficial bacteria preparations are photosynthetic bacteria, EM Bacteria, Bacillus, etc., can also be nitrifying bacteria; benefi...

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Abstract

The invention relates to a method for controlling macroalgaes in a stichopus japonicas culture pond. The method comprises the following steps: applying an inorganic fertilizer and a low-temperature resistant beneficial bacteria preparation inside a stichopus japonicas culture pond, so that the density of monodus subterraneus in the pond achieves 500,000-1,000,000 cell/ml; the filament length achieves 30cm and the macroalgaes inside the pond are manually fished out when the cover area of the macroalgaes on the bottom of the pond achieves 25%; basket fish fries and stichopus japonicas are cultivated in a mixing manner and 3-5ml of beneficial bacteria preparation is applied to each mu when the water temperature of the pond is 17-20 DEG C; the macroalgaes close to death are manually fished out, the basket fish fries are fed with 500-600g of macroalgaes everyday, and the cover area of the macroalgae on the bottom of the pond is controlled at 8-10% when the water temperature of the pond achieves 26-30 DEG C; the basket fish fries are captured when the water temperature of the pond is 13-14 DEG C. The method is simple in technology, easy to operate, low in cost, low in labor intensity, and high in work efficiency; the quantity of the macroalgaes in the stichopus japonicas culture pond can be eliminated and controlled; the yield and the quality of stichopus japonicas cultivation are improved.

Description

technical field [0001] The invention relates to the technical field of controlling large seaweeds in seawater culture, in particular to a method for controlling large seaweeds in sea cucumber culture ponds. Background technique [0002] Sea cucumber has medical value and is also a nourishing and nutritious product, and its market demand is huge. In the process of sea cucumber cultivation, a large number and variety of large seaweeds will grow in sea cucumber cultivation ponds in spring and summer. The large seaweeds mainly include Enteromorpha, Cladophora, Spirogyra, Spirulina, etc., and Enteromorpha, Cladosporium and Spirogyra are the most harmful; Enteromorpha is suitable for growth at a water temperature of 12-25°C, with fast reproduction speed and small thorns. Ginseng will be suffocated to death if it enters the proliferating Enteromorpha algae. Enteromorpha decays and sinks to the bottom of the pool and covers the japonicus, which can suffocate the japonicus and seri...

Claims

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Application Information

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IPC IPC(8): A01G33/00
CPCY02A40/80
Inventor 王海涛王世党苏海岩
Owner WENDENG AQUATIC PROD TECH PROMOTION STATION
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