Synergistic improvement of saline-alkali soil quality by desulfurized gypsum and Sesbania cannabina intercropping: Microbial mechanisms and field efficacy

Key Points

• Desulfurized gypsum positively alters saline-alkali soil quality and enhances microbial activity.
• The analysis reveals significant improvements in soil properties, supporting soil restoration methods.
• Field efficacy was evaluated under real agricultural conditions, ensuring practical relevance.
• Understanding microbial mechanisms highlights opportunities for sustainable agriculture and effective soil management.