[Objective]To investigate the contents and dynamic variation characteristic of mineral elements in Macadamia ternifolia leaves during the growth period. [Method]Taking H2,OC,788 which were the main cultivated M. ternifolia varieties in Guizhou Province as the study object,mineral elements content and variation law were determined. [Result]The results showed that the contents of 7 kind of mineral elements indicated regular change in the leaves of three M. ternifolia varieties. The order of mean content of nu...