Preparation method and application of bio-organic fertilizer for cultivation of beneficial algas in ponds

Abstract

The invention relates to a preparation method and application of a bio-organic fertilizer for cultivation of beneficial algas in ponds, and belongs to the field of aquaculture subject. The preparation method comprises the following steps: pigs dying of diseases and auxiliary materials are treated with physical crushing, stirring, high-temperature processing and biological fermentation to prepare basic materials; the basic materials are sieved; middle and trace mineral elements are compounded; according to a certain proportion, a restrictive amino acid combination, organic / inorganic N / P or C / N needed by the growth of the aquatic beneficial algas are added to prepare an animal and plant oriented bio-organic fertilizer; according to the method needed by the ecological restoration of the aquaculture water environment, the fertilizer is soaked and splashed or directly and uniformly spread with the fertilizer being dry. According to the preparation method, high-temperature processing at the temperature of over 90 DEG C for 24 hours and high temperature resistant complex beneficial microorganisms are adopted, therefore, the situation that the bio-organic fertilizer avoids the secondary pollution of virus, bacteria and parasites is ensured, loss of nutritional substances like animal and plant oriented protein is guaranteed to be avoided, and the nutrition demands of the aquatic beneficial algas are met through compound.

Description

technical field [0001] The invention relates to a preparation method and application of bio-organic fertilizer used for cultivating beneficial algae in ponds, and belongs to the field of aquaculture. Background technique [0002] The essence of fertilizing water in aquaculture is to increase the number of phytoplankton and zooplankton in the water body. Its role has two aspects: first, it improves the oxygenation capacity of the water body itself, promotes the circulation of various substances in the water body, and ensures that the fish, shrimp, crab, and shellfish life activities; secondly, it directly increases the number of bait organisms and provides nutritious food for farmed animals. [0003] Prior to this, there were two main sources of algae fertilizer for aquaculture water environment: one was the organic fertilizer used to grow crops, and the other was livestock and poultry manure that had not been standardized and regulated. The former mainly provides plant nutr...

AI Technical Summary

Problems solved by technology

The water solubility of fertilizers and the limited nutrient requirements have become the key technologies of aquatic fertilizers. Improper proportioning will lead to the skyrocketing of harmful algae (such as blue-green algae, etc.) and aquatic plants, which not only wastes costs but also damages the water environment; the latter mainly harms It is easy to cause secondary pollution of livestock and aquatic animals symbiosis (such as coccidia, nematode eggs, viruses, bacteria, mycotoxins, etc. pollute the water environment)