不同氮肥形态的氨挥发损失比较  

Ammonia Volatilization of Different Nitrogen Fertilizer Types

作　　者：苏芳[1] 黄彬香[1] 丁新泉[1] 高志岭[1] 陈新平[1] 张福锁[1] Kogge Martin Rmheld Volker 

机构地区：[1]中国农业大学资源与环境学院,北京100094 [2]Hohenheim大学植物营养研究所,德国斯图加特70593

出　　处：《土壤》2006年第6期682-686,共5页Soils

基　　金：国家自然科学基金重大项目(30390084);国家自然科学基金面上项目(40405024)资助。

摘　　要：利用从德国引进的农田土壤氨挥发风洞法测定系统,对不同N肥形态的肥料进行对比实验。结果表明,在相同施N量条件下,硝酸铵、硝酸铵钙、硫硝酸铵的氨挥发损失分别比尿素减少22.5%、3.2%和8.3%,不同N肥的氨挥发损失差异很大。相同条件下,尿素的氨挥发损失为25.7%,添加DMPP后氨挥发损失为27.6%;硫硝酸铵的氨挥发损失为18.6%,添加DMPP后为20.6%;添加DMPP对尿素和硫硝酸铵的氨挥发影响不显著。Ammonia volatilization of different nitrogen fertilizer types was studied by German wind-tunnel system. Results showed that there were obvious differences in ammonia volatilization among different nitrogen fertilizer types; Under the same N rate and application method, compared to urea. （1） ammonia losses decreased by 22.5%, 3.2% and 8.3% from ammonium nitrate, calcium ammonium nitrate and ammonium sulphate nitrate, respectively; （2） under DMPP-added condition, ammonia losses only increased by 1.9% from urea and 2.0% from ammonium sulphate nitrate, respectively; thus, no obvious inhibition of DMPP on ammonia loss was found from urea and ammonium sulphate nitrate.

关 键 词：氮挥发 风涧法 氮肥形态 

分 类 号：S143.1[农业科学—肥料学]