Biochar-Loaded Purpureocillium lilacinum Formulation Enhances Soil Water Retention, Drought Tolerance, and Essential Oil Productivity of Spearmint (Mentha spicata L.)
: Water deficit severely constrains the productivity and essential oil yield of medicinal and aromatic crops grown in sandy soils. This study assessed whether a biochar-loaded Purpureocillium lilacinum formulation could improve soil properties, drought tolerance, growth, mineral nutrition, soil biological activity, and...