[Absorption and Distribution of Nitrogen,Phosphorus and Potassium in Atractylodes macrocephala].

Objective: To investigate the absorption and distribution of nitrogen（ N ), phosphorus（ P） and potassium（ K） in Atractylodes macrocephala by field experiment.

Methods: The samples of Atractylodes macrocephala were carried out in different growing periods,and the amount of dry matter and the contents of N,P and K in different parts of the plant were determined,respectively.

Results: The results showed that one-year-old Atractylodes macrocephala of budding stage and rhizome swelling stage were the key period of rapid nutrient absorption, and the absorbed nutrient element mainly allocated to the aerial part.