Compound biological organic fish guano and preparation method thereof

Abstract

The invention discloses a compound biological organic fish guano and a preparation method thereof. The fish guano consists of the following raw materials in percentage: 90% of a base fertilizer, 2% of nitrogen-fixing bacteria, 2% of phosphorus-solubilizing bacteria, 2% of potassium-solubilizing bacteria, 2% of photosynthetic bacteria and 2% of bacilli. The preparation process comprises the following steps: preparing the base fertilizer, adding the bacteria of other species to the base fertilizer, uniformly stirring, fermenting and packing. In the fish guano disclosed by the invention, the nitrogen-fixing bacteria are used for immobilizing nitrogen in a free state and converting the immobilized nitrogen into a combined-state nitrogen fertilizer which can be absorbed by algae so as to take an effect of fertilizing water; since dung is rich in inorganic potassium and inorganic phosphorus which are not used completely, and organic potassium and organic phosphorus cannot be directly utilized and can generate toxic and harmful substances once being decomposed, the phosphorus-solubilizing bacteria and the potassium-solubilizing bacteria are added to decompose the toxic and harmful substances, so as to change wastes and harmful substances into wealth; the photosynthetic bacteria with relatively strong degrading and decomposing functions are conducive to the improvement of an effect of decomposing organic matters and the increase of the photosynthetic rate of aquaculture water, so as to supplement a great amount of dissolved oxygen for aquaculture water; and the bacilli are capable of effectively inhibiting the growth and propagation of pathogenic bacteria in a water body and are capable of killing harmful bacteria.

Description

technical field [0001] The invention relates to a fertilizer formula, in particular to a compound bio-organic fish fertilizer with simple process and good application effect and a preparation method thereof. Background technique [0002] With the change of Chinese people's dietary structure, the demand for aquatic animals in the market is constantly increasing. Therefore, it is necessary to vigorously develop the aquaculture industry to solve the contradiction between supply and demand. In order to increase the output of aquatic products per unit area, it is necessary to increase the fertility of the water in the pond to increase the output of fish. At present, the fertilizer and water aquaculture that is mostly used is to put chemical fertilizers or farmyard manure in the aquaculture water body to promote the rapid growth of high-quality algae in the water body, increase the supply of nutritionally balanced and sufficient food for aquatic animals to ensure the rapid growth ...

AI Technical Summary

Problems solved by technology

[0007] Fourth, consume dissolved oxygen

Fertilizers produce chemical reactions in the water, consuming the water body to dissolve nutrients, reducing the oxygen content of the water body, causing the fish to be hypoxic and floating, and even to overturn the pond in severe cases

[0008] 2. Defects of farmyard manure

[0010] First, more polluted water bodies

Farmyard manure cannot be directly absorbed by algae, and it needs to be decomposed and transformed for a long time, and only partially transformed, so the efficiency is very limited

[0011] Second, the consumption of dissolved oxygen is greater

It takes five tons of dissolved oxygen to decompose one ton of farmyard manure, which leads to a rapid decrease in dissolved oxygen in the water body, and aquatic animals are more prone to floating heads and turning ponds

[0012] Third, decomposition will produce organic ammonia to pollute water bodies