Microbial Amendments for Improving Alfalfa Productivity and Soil Health in Saline–Alkali Environments: Underlying Mechanisms and Practical Challenges
Alfalfa (Medicago sativa L.) is a widely cultivated forage legume, but its productivity is severely constrained under saline–alkali conditions due to impaired nutrient uptake, ionic imbalance, and disruption of its symbiosis with Ensifer meliloti. Conventional reclamation methods rely on chemical inputs, which are ofte...