A quick test procedure for soil nitrate‐nitrogen
作者:
T. K. Hartz,
期刊:
Communications in Soil Science and Plant Analysis
(Taylor Available online 1994)
卷期:
Volume 25,
issue 5-6
页码: 511-515
ISSN:0010-3624
年代: 1994
DOI:10.1080/00103629409369058
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
A procedure for extraction and measurement of nitrate‐nitrogen (NO3‐N) in soil is described. Extracting solution [0.025M Al2(SO4)3] and field‐moist soil are measured volumetrically, with NO3‐N concentration measured by nitrate‐sensitive colorometric test strips or nitrate‐selective electrode. Across a range of soil texture, moisture content, and NO3‐N concentration, the procedure was well correlated with conventional laboratory analysis of 2N KC1 soil extracts (r2= 0.94). This quick test procedure is proposed as an on‐farm monitoring technique to improve N management.
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