Correlation analysis of Cu contents between tea and its growth soil

Cu contents of 21 sets of tea and soil samples collected from main tea production areas of Sichuan province were determined by using ICP method.Results showed that the Cu contents in tea did not vary with that in its growth soil,and kept a relative stable level.Statistical analysis indicated that the correlation coefficient of Cu content between tea and soil was -0.1816,revealing a weak negative correlation.It was found that the absorption regularity of tea tree to Cu was active and effective absorption.In other word,the Cu content of tea was mainly decided by the requirement of the growth and physiological metabolism of tea.