Method for producing carbon-based bacterial fertilizer by feeding hermetia illucens by adding biochar into livestock and poultry manure

Abstract

The invention discloses a method for producing a carbon-based bacterial fertilizer by feeding hermetia illucens by adding biochar into livestock and poultry manure, which comprises the following steps of: firstly, adding biochar, glucose and bacillus velezensis in a certain proportion into collected livestock and poultry manure, placing the livestock and poultry manure for a certain time, and then putting a certain amount of hermetia illucens larvae into the livestock and poultry manure for feeding; and when the hermetia illucens larvae grow to a pre-pupa stage, performing screening to obtain hermetia illucens bodies and a carbon-based bacterial fertilizer. The treatment method for the livestock and poultry manure is simple and scientific, the biochar has rich functional groups and dissolved organic carbon, the surface of the biochar has a high pore structure and a high specific surface area, veterinary drug residues, heavy metal ions and the like in the livestock and poultry manure can be adsorbed, and the influence of toxic and harmful substances on the growth of hermetia illucens is effectively reduced; glucose is mainly used for providing a sufficient carbon source for rapid activation and mass propagation of bacillus velezensis; and the bacillus velezensis can improve the conversion efficiency and biological control effect of hermetia illucens on livestock and poultry manure.

Description

technical field [0001] The invention relates to the resource utilization of livestock and poultry manure, in particular to a method for producing carbon-based bacterial fertilizer by adding biochar to livestock and poultry manure to raise black soldier flies. Background technique [0002] With the continuous growth of my country's population and the improvement of people's living standards, the demand for meat, eggs and milk is also increasing. Especially in recent years, the large-scale development of the breeding industry has caused the number of livestock and poultry to increase year after year. As of 2018, the annual slaughter of poultry in my country has exceeded 14.6 billion, ranking first in the world, and the excrement produced is about 3 billion tons. These feces are rich in organic matter, pathogens, etc. If not handled properly, it will not only cause a lot of waste of this resource, but also cause serious environmental pollution problems. Due to intensive breedi...

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Problems solved by technology

[0008] The purpose of the present invention is to provide a method for adding biochar to livestock and poultry manure to raise black soldier flies to produce carbon-based bacterial fertilizer, so as to solve the problem of high cost and complicated process for preparing biochar from livestock and poultry manure, and the efficiency of black soldier flies to transform livestock and poultry manure Low, technical problems such as serious odor emission and environmental pollution during the conversion process

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