Sterilizing organic-inorganic spherical special fertilizer for aquaculture

Abstract

The invention discloses a sterilizing organic-inorganic spherical special fertilizer for aquaculture. The special fertilizer overcomes the problems of a single function, incapacity of meeting growth and development demands of fish and the like of conventional fertilizers. The special fertilizer is characterized in that the special fertilizer is prepared from organic fertilizer, inorganic fertilizer, zeolite powder, trace element amino acid chelate, compound sodium nitrophenolate, em probiotics, etc. through mixing and granulation. A preparation method for the special fertilizer comprises the following steps: uniformly mixing the organic fertilizer with other raw materials; then conveying the obtained mixture to a granulator for granulation; delivering the granulated material to a dryer for drying, wherein heat of the dryer is supplied by combustion of coal; subjecting the dried material to cooling and screening; and packaging the obtained finished product with a particle size of 1.5 to 3 mm and warehousing the product. The special fertilizer is applicable to culture of grass carp, crucian carp, carp, silver carp, bighead carp, catfish, tilapia, colossoma brachypomum, saltwater fish, soft-shelled turtle, mandarin fish, eel, river crab, prawn, white prawn, freshwater shrimp, Ma shrimp, macrobrachium, lobster, loach, swamp eel, sea cucumber, abalone, pearl, mussel, Sinonovacula constricta, oyster, green lipped mussel, clam, Tegillarca granosa, shellfish, laver, sea-tangle, etc.

Description

technical field [0001] The invention belongs to the field of fertilizers, in particular to a special spherical fertilizer for sterilizing organic and inorganic aquaculture. Background technique [0002] In aquaculture production, many farmers use various types of fish fertilizers. On the one hand, they cultivate beneficial algae to increase the primary productivity of water bodies. On the other hand, the organic matter contained in fish fertilizers can also be directly utilized by breeding organisms, thereby increasing aquaculture production. and economic benefits. There are many types of fish fertilizers currently on the market, mainly divided into: [0003] 1. Farmyard manure (compost, retting manure, barn manure, green manure, biogas fertilizer, fermented manure, etc.): Farmyard manure is mainly macromolecular organic matter, which has a long-lasting fertilizer effect and will not cause a large number of algae outbreaks. However, because most of the farmyard manure is u...

AI Technical Summary

Problems solved by technology

The biggest disadvantage of biological fertilizer is the high price, generally 5,000-7,000 yuan per ton, and it should be used with caution in rainy days, because most of the microorganisms contained in it are aerobic, and the decomposition of organic matter consumes more oxygen, which is easy to cause water hypoxia