Pedosphere 10(2): 107--116, 2000
ISSN 1002-0160/CN 32-1315/P
©2000 Soil Science Society of China
Published by Elsevier B.V. and Science Press
| Nutrient cycling and balance in red soil agroecosystem and their management |
| HE Yuan-Qiu and LI Zhi-Ming |
| Institute of Soil Science, the Chinese Academy of Sciences, P.O. Box 821, Nanjing 210008 (China) |
| ABSTRACT |
| An experiment was conducted in a red soil derived from Quaternary red clay in the Ecological Experiment Station of Red Soil, the Chinese Academy of Sciences, located in Yingtan (28° 15' 30'' N, 116° 55' 30'' E), Jiangxi Province. The results show that the major ways of nutrient loss are leaching and nitrogen volatilization. Rationalizing crop distribution, stimulating nutrient recycling, and improving internal nutrient flow are effective measures to decrease nutrient loss and to promote nutrient utilization efficiency. The important ways of regulating nutrient cycling and balance in the agroecosystem of the red soil are to establish optimal eco-agricultural models, practice balanced fertilization and combine the cropping system with the livestock system. |
| Key Words: balance, nutrient cycling, red soil agroecosystem, regulation options |
| Citation: He, Y. Q. and Li, Z. M. 2000. Nutrient cycling and balance in red soil agroecosystem and their management. Pedosphere. 10(2): 107-116. |
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