A simple chemical method of assessing potentially available organic nitrogen in soil1
作者:
C. Gianello,
J. M. Bremner,
期刊:
Communications in Soil Science and Plant Analysis
(Taylor Available online 1986)
卷期:
Volume 17,
issue 2
页码: 195-214
ISSN:0010-3624
年代: 1986
DOI:10.1080/00103628609367708
出版商: Taylor & Francis Group
关键词: Block digester;aerobic incubation method;anaerobic incubation method;air‐drying;air‐dry storage
数据来源: Taylor
摘要:
A simple chemical method of assessing potentially available organic N in soil is described. It involves determination of the ammonium‐N produced by treatment of the soil sample with 2MKCl at 100°C for 4 hours in a block digester. The method is rapid and precise, and its results are not significantly affected by air‐drying or air‐dry storage of the soil sample before analysis. It is well suited for routine use in soil testing laboratories because it does not require filtration or transfer steps. Studies using 33 Brazilian soils showed that the results obtained by this method were highly correlated with those obtained by aerobic and anaerobic incubation methods of assessing potentially available organic N in soil.
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