A kind of fertilizer and water paste for seawater shellfish pond culture and using method thereof

Abstract

The invention discloses a fertilizer and water ointment for seawater shellfish pond cultivation and a using method thereof. The acid hydrolysis product of microalgae, humic acid, shell powder, Bacillus subtilis powder and trace elements for feeding are prepared according to the mass fraction of 50-70 : 10~20: 4~6: 3~3.8: 0.1~0.2 The paste made by mixing and stirring evenly, the fertilizer and water paste can be used at 1-1.5 kg / mu when the transparency of seawater shellfish culture ponds is higher than 40 cm Sprinkle and use after diluting. The present invention uses the water bloom cyanobacteria derived from the eutrophic water environment as the main raw material to prepare the fat water paste not only has a strong affinity to the water environment, but also contains a large amount of active biological peptides, free amino acids, probiotics and microalgae that are necessary for the proliferation of trace elements. The present invention can quickly promote the mass proliferation of beneficial algae in cultured ponds, not only make the water quality of the cultured ponds present an obvious state of "fat, alive, tender and cool", but also provide a large amount of fresh microalgae bait for cultured shellfish to increase production purpose of increasing income.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a fertilizer and water ointment for seawater shellfish pond cultivation and a using method thereof. Background technique [0002] Marine shellfish culture has the highest output in my country's aquaculture, and the overall economic benefits are huge, so the phenomenon of excessive stocking density of cultured shellfish is particularly prominent. Because most of the cultured shellfish (scallops, green clams, oysters, Philippine clams, etc.) rely on phytoplankton in the filter-feeding culture water environment, the excessive stocking density of shellfish in relatively closed seawater culture ponds will directly promote The density of phytoplankton in the water environment has dropped rapidly, so that it is far below the daily food requirements of cultured shellfish, which directly leads to a reduction in the size of cultured shellfish and a decline in aquaculture production. A...

AI Technical Summary

Problems solved by technology

Because most of the cultured shellfish (scallops, green clams, oysters, Philippine clams, etc.) rely on phytoplankton in the filter-feeding culture water environment, the excessive stocking density of shellfish in relatively closed seawater culture ponds will directly promote The density of phytoplankton in the water environment has dropped rapidly, so that it is far below the daily food requirements of cultured shellfish, which directly leads to a decrease in the size of cultured shellfish and a decrease in aquaculture output

At present, in daily aquaculture production, in order to increase the density of phytoplankton in seawater shellfish ponds, farmers often use inorganic fertilizers or fermented chicken manure fertilizers, but the fertilizer effect of inorganic fertilizers is not long-lasting, and fermented chicken manure water is easy to spoil ponds Water quality, so sea shellfish culture ponds urgently need products with good fertilizer and water effects and high environmental safety

[0003] Eutrophication has led to frequent occurrence of cyanobacteria blooms in natural water bodies in my country. At present, taking Taihu Lake cyanobacteria control measures as a representative, the practice of resource utilization of cyanobacteria in my country is mainly to use cyanobacteria as biomass fuel for power generation; however, direct incineration of cyanobacteria mud for power generation has caused A great waste of blue-green algae protein resources, because the protein content of blue-green algae mud can reach more than 40%

However, because the water bloom cyanobacteria contains the primary liver cancer toxin - microcystin, it limits its extensive resource utilization

Images