Effects of different soil amendments on saline–alkali soils by improving distribution and stability of soil aggregation

Context Saline–alkali soils in Huanghua City in China are characterized by severe compaction and poor aggregate stability, which hinder soil quality improvement and the sustainable development of agriculture in coastal areas. Aims We evaluated different soil amendments and application rates in restoring soil aggregate structure and to identify the optimal amendment formulation for ameliorating the effects of saline–alkali soil. Methods A pot experiment was conducted with 25 treatments of soil am