Benthic diatom nutrient used in sea cucumber pond and application of benthic diatom nutrient

Abstract

The invention relates to a benthic diatom nutrient for a sea cucumber pond and application of the benthic diatom nutrient. The formula of the benthic diatom nutrient comprises the following componentsin parts by weight: 2-8 parts of magnesium sulfate, 2-8 parts of manganese sulfate, 2-8 parts of sodium acetate, 10-30 parts of sodium silicate, 30-50 parts of diatomite, 10-30 parts of ferric sulfate, 5-15 parts of zinc sulfate and 2-8 parts of calcium lignosulphonate. The benthic diatom nutrient for the sea cucumber pond is prepared by uniformly stirring and mixing the raw materials at normal temperature and packaging the mixture into bags. According to the benthic diatom nutrient for the sea cucumber pond and the application of the benthic diatom nutrient, proper water transparency can becontrolled, diatom growth is promoted, and meanwhile too fast growth of green algae is avoided. the number of zooplanktons in the water body can be controlled, smooth growth and propagation of the diatom are guaranteed, and excessive ingestion of the zooplanktons to the diatom is avoided. With the method adopted, the problem of culture failure of partial benthic diatom at the opening of the pond is solved from multiple aspects of nutrition, environment and the like, and sufficient food is provided for sea cucumbers.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, in particular to a benthic diatom nutrient used in sea cucumber ponds and its application. Background technique [0002] Benthic diatoms play a very important role in the cultivation of sea cucumbers. On the one hand, sea cucumbers are basically active at the bottom of ponds. Benthic diatoms are rich in extracellular polysaccharides, amino acids, and unsaturated fatty acids, which can be used as nutritious and palatable. The bait is for sea cucumbers to feed on. In addition, the mass reproduction of benthic diatoms can inhibit the growth of harmful aquatic plants in sea cucumber ponds, and avoid the damage caused by aquatic plants to rot in high temperature periods. Products for cultivating benthic diatoms on the market often only focus on the supplement of nitrogen and phosphorus nutrients, ignoring the difference in nutritional requirements between diatoms and other green algae. It is easy ...

AI Technical Summary

Problems solved by technology

Products for cultivating benthic diatoms on the market often only focus on the supplement of nitrogen and phosphorus nutrients, ignoring the difference in nutritional requirements between diatoms and other green algae. It is easy to cultivate green algae. In fact, in the process of sea cucumber cultivation, With the continuous addition of feed and fertilizer and aquatic products, the nitrogen and phosphorus nutrients in the pond are basically sufficient

Other external factors often lead to the failure of the culture of benthic diatoms, such as turbid water, the benthic diatoms cannot get enough light; there are too many zooplankton in the pond, which eat a large number of diatoms in the pond, resulting in culture failure