Ammonia loss following surface application of urea fertilizers to a calcareous soil
作者:
R. M. N. Kucey,
期刊:
Communications in Soil Science and Plant Analysis
(Taylor Available online 1988)
卷期:
Volume 19,
issue 4
页码: 431-445
ISSN:0010-3624
年代: 1988
DOI:10.1080/00103628809367949
出版商: Taylor & Francis Group
关键词: acid urea;ammonia volatilization;liquid urea
数据来源: Taylor
摘要:
N loss by volatilization was measured for surface‐applied granular urea and ammonium nitrate, liquid urea‐ammonium nitrate and liquid acid urea in closed containers. Urea‐containing fertilizers lost between 10 and 451 of the N added within 10 days. The presence of a straw mulch accentuated the losses. N volatilization losses from acid urea solutions were significantly less than from granular urea. Addition of water following surface application of granular urea significantly reduced the loss of N as ammonia from the soil. The results of this laboratory study indicate that use of acid urea for surface application of N fertilizers may reduce N volatilization losses relative to granular urea, but losses still exceed those from ammonium nitrate.
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