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Nitric Oxide Volatilization from a Calcareous Soil and Model Aqueous Solutions
Author(s) -
Steen W. C.,
Stojanovic B. J.
Publication year - 1971
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1971.03615995003500020029x
Subject(s) - chemistry , loam , ferrous , urea , ammonium , inorganic chemistry , aqueous solution , nitrite , ammonium sulfate , nitrate , ammonia volatilization from urea , nitrogen , sulfate , environmental chemistry , volatilisation , calcareous , soil water , botany , chromatography , biochemistry , soil science , organic chemistry , environmental science , biology
Nitric oxide (NO) was volatilized from a laboratory aerobically incubated West Point loam (amended with different rates of urea or ammonium sulfate nitrogen) and from aqueous solutions containing ammonium and nitrate ions. Oxide loss from the soil was dependent upon the source and rate of nitrogen applied. Urea‐treated soil samples fertilized with 50, 100, 200, and 300 ppm of N lost 8.9, 17.8, 26.6, and 35.5 kg N/ha, respectively. Similar NO losses were observed from ammonium sulfate treatments, although these were substantially smaller. Also, losses of NO from sterile soil samples supplemented with ammonium and nitrite in concentrations equivalent to those occurring in the nonsterile soil at the peak of oxide volatilization were comparable to those of the nonsterile soil. Aqueous solutions containing nitrite and ammonium or urea nitrogen, with or without ferrous iron, humic acid, or lignin, which were buffered from pH 6.5 to pH 8.0, volatilized appreciable quantities of NO over the entire pH range tested. A decrease in methyl content of organic matter suggests that methyl nitrite may have been volatilized.