水热耦合作用下氨扩散挥发动力学研究  

Effects of Water and Temperature on Ammonia Volatilization of Fertilizer

作　　者：高鹏程[1] 张一平[1] 张国云[1] 吴存良[1] 

机构地区：[1]西北农林科技大学资源环境学院,陕西杨凌712100

出　　处：《西北农业学报》2002年第3期116-121,共6页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：国家"九五"攻关项目编号 :( 96 -0 0 4-0 5 -0 2 )

摘　　要：应用培养箱试验 ,以碳铵和硫铵为供试肥料 ,黄绵土为供试土壤 ,研究了 4种温度、5种湿度下两种肥料的氨挥发量变化趋势。结果显示 ,温度升高 ,两种肥料的氨挥发量增高 ;湿度提高 ,两种肥料的氨挥发量减少。通过方程拟合分别得出碳铵处理和硫铵处理的氨挥发量 ( Y)与温度 ( T)、湿度 ( w)、以及时间 ( t)的关系式 ,该关系式显示温度与湿度存在负交互效应。The dynamics of ammonia volatilization induced by diffusion on the condition of water-heat interation existing was studied in the text. Ammonia volatilization of two kinds of fertilizer in different temperature and humidity was studied using ammonium-bicabonate and ammonium-sulfate as trial fertilizer and loess as trial soil in culture tank. The results were that the ammonia volatilization of the two fertilizers increased when temperature rose and decreased when humidity rose. The regression equations of the ammonium-bicabonate treatment and the ammonium-sulfate treatment among the ammonia volatilization, the temperature, the humidity and the time were gotten, they showed the temperature and the humidity had negative interaction.

关 键 词：水热耦合作用 氨扩散挥发 动力学 温度 湿度 交互作用 氮损失 氮肥 

分 类 号：S143.12[农业科学—肥料学]