碱解蒸馏法测定植烟土壤中水解性氮含量的研究  

Determination of Hydrolysable Nitrogen Content in Tobacco Soils with Alkali-hydrolyzed Distilling Method

作　　者：杨雪 陶晓秋 黄玫 

机构地区：[1]四川烟草质量监督检测站,四川成都610041

出　　处：《安徽农业科学》2013年第17期7517-7519,共3页Journal of Anhui Agricultural Sciences

摘　　要：[目的]在保证数据准确性和稳定性的基础上,提高工作效率以满足大批量土壤检测的需要。[方法]介绍了FOSS Kjeltec 8400全自动定氮仪碱解蒸馏法测定植烟土壤中水解性氮含量的过程,优化了影响试验结果的主要因素。[结果]与常规碱解扩散法进行对比,2种方法测定土壤水解性氮的结果不存在显著差异,但达到0.01显著的相关水平。[结论]采用碱解蒸馏法代替扩散法是可行的。[ Objective ] The work efficiency was improved to meet the demand of the detection of a large scale soils on the basis of the accuracy and stability of the data. [ Method] The process of hydrolysable nitrogen content in tobacco soils with alkali-hydrolyzed distilling method using FOSS Kjehec 8400 full-automatic azotometer was introduced. And the major factors that influenced the experimental results were optimized. [ Re- sult ] Compared with alkali N-proliferation method, the difference of hydrolysable nitrogen contents in soils with two measuring methods wasn＇ t significant, but was strongly correlated. [ Conclusion ] It is feasible to replace alkali N-proliferation method with alkali-hydrolyzed distilling method.

关 键 词：植烟土壤 水解性氮 碱解蒸馏法 碱解扩散法 

分 类 号：S572[农业科学—烟草工业]