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Effect of Meteorological Parameters on Ammonia Loss from Manure in the Field
Author(s) -
Brunke R.,
Alvo P.,
Schuepp P.,
Gordon R.
Publication year - 1988
Publication title -
journal of environmental quality
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 171
eISSN - 1537-2537
pISSN - 0047-2425
DOI - 10.2134/jeq1988.00472425001700030014x
Subject(s) - volatilisation , ammoniacal nitrogen , environmental science , manure , wind speed , flux (metallurgy) , precipitation , ammonia , atmospheric sciences , ammonia volatilization from urea , liquid manure , meteorology , hydrology (agriculture) , chemistry , agronomy , environmental engineering , biology , geology , physics , geotechnical engineering , organic chemistry , engineering , wastewater
A micrometeorological flux measuring technique was used to determine ammonia (NH 3 ) volatilization from surface‐applied swine ( Sus scrofa ) and dairy ( Bos taurus ) manure under precipitation‐free June to October weather conditions. An attempt to correlate observed volatilization rates of NH 3 to single meteorological parameters such as windspeed, temperature, net radiation, etc. was inconclusive insofar as these variables are not independent under field conditions; correlations with windspeed and net radiation appeared generally high. An approximate linear relationship was obtained, however, between applied total N or ammoniacal‐N and NH 3 flux within the meteorological conditions encountered during the experiments. This is consistent with the assumption that volatilization from liquid manure is primarily determined by the drying rate of the manure insofar as partial pressure of NH 3 is the primary parameter determining volatilization. A derived meteorological variable such as the hay drying index already used in some network agrometeorological forecasts may thus be the most suitable single indicator of high‐volatilization weather conditions.