Pedosphere 9(4): 299--304, 1999
ISSN 1002-0160/CN 32-1315/P
©1999 Soil Science Society of China
Published by Elsevier B.V. and Science Press
| Model estimation of volatilization of ammonia applied with surface film-forming material |
| ZHUANG Shun-Yao, YIN Bin and ZHU Zhao-Liang |
| Institute of Soil Science, the Chinese Acadermy of Sciences, Nanjing 2100O8 (China) |
| ABSTRACT |
| Greenhouse experiments were conducted to determine the ammonia volatilization loss with or without application of surface film-forming material (SFFM). Ammonia volatilization loss was estimated by the model developed by Jayaweera and Mikkelsen. The results showed that the model could estimate and predict well Ammonia volatilization loss also in case of SFFM addition. There was an emended factor B introduced to the model calculation when SFFM was used. Simulated calculation showed that the effect of factor B on NH3 loss was obvious. The value of B was governed by SFFM and the environmental conditions. Sensitivity analysis suggested that pH was the main factor controlling NH3 volatilization loss from the floodwater. |
| Key Words: model estimation, NH3 volatilization loss, surface film-forming material |
| Citation: Zhuang, S. Y., Yin, B. and Zhu, Z. L. 1999. Model estimation of volatilization of ammonia applied with surface film-forming material. Pedosphere. 9(4): 299-304. |
|
View Full Text
|
|
|
|
