Preparation of biofertilizer with phosphogypsum and straw: Microbial community changes and plant growth effects

The accumulation of solid phosphogypsum waste poses a great ecological threat. However, environmental problems exist in the treatment of phosphogypsum via physical and chemical methods, and this study aims to present a new environmentally friendly method to treat phosphogypsum and promote its comprehensive utilization. We analyzed the microbial community changes that occur in the phosphogypsum composting process and determined the feasibility of utilizing the biofertilizer prepared in this study through plant experiments.