烟田土壤及污泥0.01mol/L CaCl_2浸提液中N素形态测定  

Determination of Nitrogen Fractions in 0.01mol/L CaCl_2 Extraction Solution Used in Tobacco Planting Soil and Sludge

作　　者：邵孝侯[1] 张毅华[1] 汪耀富 刘国顺 

机构地区：[1]河海大学水利水电工程学院,江苏南京210098 [2]国家烟草栽培生理生化研究基地,河南郑州450002

出　　处：《河海大学学报（自然科学版）》2002年第2期42-44,共3页Journal of Hohai University(Natural Sciences)

基　　金：国家烟草专卖局"九五"重大科技攻关项目 (985 184) ;水利部 948资助项目 (975 15 5 )

摘　　要：对烟田土壤及污泥 0 .0 1mol/LCaCl2 浸提液中NH+4 N ,NO- 3 N和可溶性有机态N的测定方法进行了探讨 ,提出了简便、快捷、适合国内实验室分析条件的测定 0 .0 1mol/LCaCl2 浸提液中NH+4 N ,NO- 3 N和可溶性有机态N的方法和步骤 ,为烟田合理推荐施用N肥、污泥农用及防止土壤。A discussion is made on the determination of fractions of NH 4 + N, NO 4 N, and soluble organic N in 0.01 mol/L CaCl 2 extraction solution used in tobacco planting soil and sludge. Related methods and steps for fraction determination, which are convenient, fast and suitable for laboratory use in China, are proposed, providing effective monitoring and analytical measures for reasonable recommendation of N fertilizer, agricultural use of sludge, and prevention of N pollution in water bodies and soils.

关 键 词：烟田土壤 污泥 0.01mol/LCaCl2浸提液 N素形态 测定 

分 类 号：X795[环境科学与工程—环境工程]