Preparation method of composite biological organic fertilizer granule

Abstract

The invention discloses a preparation method of a composite biological organic fertilizer granule, which comprises the following steps of: adding crude fiber degrading bacteria into rice bran, uniformly mixing to prepare a fermentation material, then crushing and mixing corn straws, wheat straws and rice hulls, adding the fermentation material into the mixture, spraying water into the mixture while stirring so that the humidity of the mixture is kept between 55-60%, then fermenting the mixture for 15 days at 37-40 DEG C, and turning over the mixture every day so that sufficient oxygen is contained in the mixture and the degradation of straws and rice hulls by coarse fiber degradation bacteria is satisfied. According to the invention, the crude fiber is firstly reduced before the crude fiber is fermented, so that the fermentation efficiency of the crude fiber can be improved, the content of small molecular saccharides in the product can be improved, the fertilizer efficiency can be improved, the problem that the decomposition of the crude fiber is difficult through direct fermentation in the prior fermentation process is solved, so that the content of small molecular saccharides inthe prepared organic fertilizer is reduced, and the fertilizer efficiency is further reduced.

Description

technical field [0001] The invention belongs to the field of organic fertilizer preparation and relates to a method for preparing compound biological organic fertilizer granules. Background technique [0002] In the preparation process of bio-organic fertilizer granules, fermentation process is usually carried out, but the direct fermentation of crude fiber is difficult to achieve decomposition, which reduces the content of small molecular sugars in the prepared organic fertilizer, thereby reducing the fertilizer efficiency. At the same time, when preparing organic fertilizer granules The prepared fermentation product is granulated by a granulator. The existing granulator usually uses a disc granulator. The amount of raw materials added during the granulation process should not be too much, otherwise it will easily cause the granulation cutting knife It cannot be completely crushed, and at the same time, the crushed product is directly poured out after granulation, so the pa...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a preparation method of compound bio-organic fertilizer granules, which firstly reduces the crude fiber before the fermentation of the crude fiber, and then can improve the fermentation efficiency of the crude fiber, increase the content of small molecule sugars in the product, and improve the fertilizer efficiency , which solves the problem that in the existing fermentation process, the direct fermentation of crude fiber is difficult to achieve decomposition, which reduces the content of small molecule sugars in the prepared organic fertilizer, thereby reducing the fertilizer efficiency

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