Biological sludge organic fertilizer with double-layer structure and manufacturing method thereof

Abstract

The invention discloses a biological sludge organic fertilizer with a double-layer structure and a manufacturing method thereof. The biological sludge organic fertilizer is granular and comprises an inner layer structure and an outer layer structure, wherein both the inner layer and the outer layer of the fertilizer adopt sludge as matrix; and according to the weight ratio, Ganoderma fungus accounts for 6 to 15 percent in the inner layer, Bacillus megaterium accounts for 1 to 5 percent in the inner layer, and Bacillus megaterium accounts for 6 to 15 percent in the outer layer. The method has the advantages that on one hand, lots of sludge can be transformed into the biological sludge organic fertilizer; and on the other hand, the activity of soil available nutrients can be improved more quickly, the side effect of chemical fertilizer is reduced, the growth of plants is promoted, and the economical and environmental benefits are achieved.

Description

technical field [0001] The invention relates to a fertilizer, in particular to a biological sludge organic fertilizer with a double-layer structure and a manufacturing method thereof. Background technique [0002] Existing fertilizers can be divided into three types: organic fertilizers, inorganic fertilizers and microbial fertilizers. Organic fertilizers are traditional fertilizers, such as poultry manure, etc.; inorganic fertilizers are artificial fertilizers that have emerged from the development of modern science and technology, such as potassium fertilizers, phosphate fertilizers, nitrogen fertilizers, etc.; microbial fertilizers are various microbial products, such as nitrogen-fixing bacteria, rhizobia, etc. However, these types of fertilizers have their own advantages and disadvantages. For example, traditional organic fertilizers have slow fertilizer effects and are inconvenient to use due to their large size. However, long-term use will cause soil compaction and da...

AI Technical Summary

Problems solved by technology

[0011] The object of the present invention is to provide a biological sludge organic fertilizer with a double-layer structure, which uses fermented and matured sludge as the main substrate, adds bacterial agents and then granulates to make biological sludge organic fertilizer, so as to solve the problem of sludge in production. The problem of large land occupation, heavy secondary pollution, and low treatment volume can improve the soil problems caused by long-term use of chemical fertilizers