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Effect of Nitrogen Volatilization on Soil Acidity Changes Due to Applied Nitrogen
Author(s) -
Hiltbold A. E.,
Adams Fred
Publication year - 1960
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/sssaj1960.03615995002400010020x
Subject(s) - volatilisation , nitrification , chemistry , nitrogen , ammonia volatilization from urea , environmental chemistry , incubation , urea , soil water , soil ph , inorganic chemistry , soil science , environmental science , organic chemistry , biochemistry
Nitrogen was applied as urea, NH 4 OH, (NH 4 ) 2 SO 4 , (NH 4 )H 2 PO 4 , (NH 4 ) 2 HPO 4 , NH 4 NO 3 , and NaNO 3 to 10‐, 20‐, and 25‐g. samples of soil and incubated under conditions favorable for nitrification. Glucose was added during incubation to supply energy for denitrification. The samples were later analyzed for pH, NH 4 + , NO 2 ‐ , NO 3 ‐ , and organic N. The final acidities and extent of nitrification and volatilization varied considerably, even among identically treated samples. Volatilization losses of N ranged from none to the entire amount applied. The acidity resulting from nitrification was calculated for each sample and compared to actual acidity. The difference between calculated and observed acidity was accounted for by equivalent N volatilization. This relationship was obtained with 3 soils regardless of the N source applied and the probable gaseous form of loss.