Synthetic nitrogen fertilizers alter the soil chemistry, production and quality of tea. A meta-analysis

<p>This file is supplementary material for the literature which was titled with &quot;Synthetic nitrogen fertilizers alter the soil chemistry, production and quality of tea. A meta-analysis&quot;. The details including: Table S1&nbsp;Database structure: numbers of publication and observation of each variable; Table S2&nbsp;Detail information of the database for this meta-analysis;&nbsp;&nbsp;Table S3 Between-group heterogeneity (<em>Q</em>_b) and probability (<em>P</em> value) of soil and tea variables with different experimental factors; Figure S1 Dependences of soil pH responses to soil initial pH (a) and N fertilizer addition levels (b); and&nbsp;Figure S2 Dependences of responses of free amino acids (a) and PP: AA ratio (b) to synthetic N addition levels.&nbsp;</p>