Key Technology and Process of Preparing Soil Fertilizer by Anaerobic Fermentation

This paper introduces the research progress of anaerobic fermentation for soil fertilizer preparation, the current research status and technical principles, and focuses on the process parameters of anaerobic fermentation for soil fertilizer preparation, which mainly include the selection of raw materials and pretreatment, the reasonable inoculum selection, the control of fermentation temperature, the control of PH value, the control of carbon and nitrogen ratios, the control of organic loading, the selection of mixing methods, post-treatment and product optimization. By analyzing the existing research results, summarizing the challenges and problems, and proposing future research directions and trends, we hope to provide a reference basis for researchers in the related fields and provide theoretical guidance for the optimization of the anaerobic fermentation process in actual production, to ultimately achieve the purpose of improving the efficiency of anaerobic fermentation and expanding the scope of its application in Agricultural production.