Pedosphere 7(4): 361--366, 1997
ISSN 1002-0160/CN 32-1315/P
©1997 Soil Science Society of China
Published by Elsevier B.V. and Science Press
| Preliminary study on relationship between soil parent materials and tea quality |
| WANG Xiao-Ju, HU Xue-Feng and CHEN Hong-Zhao |
| Institute of Soil Science, Chinese Academy of Sciences, P. O. Box 821, Nanjing 210008 (China) |
| ABSTRACT |
| Six tea plantations with different soil-forming parent materials, the same tea variety and tea age and similar landforms and management were selected to conduct a systematic study on the relationship between soil properties and tea quality. The results showed that the quality of tea grown on the soils derived from granites, arenaceous shales, argillaceous sandstones, was superior; those on the soils derived from limestones, dolomites, Quaternary red clays, were inferior. Further study showed that sandy soils were beneficial to improving amino acid content of tea, and clayey soils made it decrease; high content of bases might decrease the contents of tea polypenols, caffeine, water extracts, but promote the content of amino acids; available phosphorous was significantly positively correlated with water extracts, but significantly negatively correlated with caffeine; slowly available potassium was positively correlated with amino acid content. Soil parent materials should be regarded as an important factor in evaluating the adaptability of tea to soils. |
| Key Words: soil parent materials, tea quality, tea soils |
| Citation: Wang, X. J., Hu, X. F. and Chen, H. Z. 1997. Preliminary study on relationship between soil parent materials and tea quality. Pedosphere. 7(4): 361-366. |
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