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土壤圈(英文版). 1999, (04)

Model Estimation of Volatilization of Ammonia Applied with Surface Film-Forming MaterialEnglish Full Text

ZHUANG SHUNYAO;YIN BIN;ZHU ZHAOLIANG(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 withoutapplication of surface film-forming material （SFFM）. Ammonia volatilization loss was estimated by the modeldeveloped by Jayaweera and Mikkelsen. The results showed that the model could estimate and predict wellammonia volatilization loss also in case of SFFM addition. There was an emended factor B introduced tothe model calculation when SFPM was used. Simulated calculation showed that the effect of factor B onNHa loss was obvious. The value of B was governed by SFFM and the environmental conditions. Sensitivityanalysis suggested that pH was the main factor coatrolling NH3 volatilization loss from the floodwater.
Keywords：

model estimation; NH3 volatilization loss; surface film-forming material;

  • Series：

    (D) Agriculture; (A) Mathematics/ Physics/ Mechanics/ Astronomy

  • Subject：

    Physical Geography and Topography; Fundamental Science of Agriculture; Agronomy

  • Classification Code：

    S151.93

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