Understanding the applied effects of water retentive agents(WRA) on Salvia miltiorrhiza Bge(SMB) is helpful to use it reasonably in SMB field planting with resisting drought and saving water.The paper is to analyze the effects of different WRA application on the formation of SMB dry matter and the absorbability of nitrogen,phosphorus and potassium and their use efficiencies with a pot culture experiment.The results showed that WRA application had a positive effect on the accumulation and distribution of SMB...