Method for preparing microorganism organic fertilizer

Abstract

The invention relates to the technical field of fertilizer preparation, in particular to a method for preparing microorganism organic fertilizer. The method comprises the following steps that firstly, a solid fermentation culture medium is prepared; secondly, rapidly-available phosphorus content is measured; thirdly, fertilizer production technological conditions are determined; fourthly, the fertilizer is prepared. According to the method, phosphorus ore waste tailing powder is utilized with waste resources such as rice straw and soybean sauce residues as auxiliary materials, the phosphate-containing organic fertilizer is prepared through microorganism fermentation treatment, a microorganism nitrogen source is provided through soybean sauce residues, on the premise that the straw is beneficial to the air permeability of the culture medium, single factor experiments and response surface experiments are adopted for optimizing the phosphate-solubilizing process of the phosphate-containing organic fertilizer prepared through fermentation based on a composite zymocyte prepared from aspergillus niger, lactic acid bacteria, acetic bacteria and bacillus megaterium, the optimal proportion of phosphorus ore waste tailing powder, rice straw and soybean sauce residues, the material and water ratio, the fermentation temperature and the fermentation time are determined, and necessary technological parameters and a certain technological base are provided for preparing the phosphate-containing organic fertilizer.

Description

technical field [0001] The invention relates to the technical field of fertilizer preparation, in particular to a method for preparing microbial organic fertilizers. Background technique [0002] Phosphorus is one of the indispensable nutrients for plant growth and development, and most of the soil in my country is deficient in phosphorus. In agricultural production, a large amount of phosphate fertilizer needs to be applied every year, which consumes a lot of phosphate rock resources and energy. Such a huge demand for phosphate fertilizer and a large amount of phosphate rock mining have made the contradiction between the gradually depleted phosphate rock resources increasingly serious. Therefore, it is of great significance to fully tap the value of each link in the phosphate fertilizer industry chain, especially the reuse of waste tailings resources in the process of phosphate mining, to reduce the environmental pollution of enterprises and increase the economic benefits o...

AI Technical Summary

Problems solved by technology

The output of soy sauce dregs in my country is very large, which contains nutrients such as protein, fat, fiber, etc. At present, there are not many development and utilization of soy sauce dregs, resulting in a large number of discarded