Reshaping the rhizosphere microbiome by humic acid enhances nutrient cycling and promotes Salvia miltiorrhiza growth
Yue Li
Intensive cultivation of Salvia miltiorrhiza often leads to soil functional decline, compromising both yield and medicinal quality. Humic acid (HA) is recognized as a promising soil amendment, yet its integrated mechanisms within the plant-soil-microbe system remain unclear. Here, we conducted a pot experiment using soil from a Salvia miltiorrhiza monoculture system to evaluate the effects of three HA application rates (33.33, 16.67, and 8.67 mg/kg soil, designated as T1-T3, respectively) compar