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Nitrate Volatilization from Soils
Author(s) -
Thomas G. W.,
Kissel D. E.
Publication year - 1970
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/sssaj1970.03615995003400050043x
Subject(s) - soil water , volatilisation , nitrate , environmental chemistry , chemistry , soil science , environmental science , organic chemistry
Nitrate losses from several soils were studied with regard to soil acidity, temperature, and time of heating. Much higher losses of NO 3 were observed from soils containing KCl‐exchangeable Al 3+ + H + than from those with no replaceable acidity. Losses at 85 and 110C were much higher than at lower temperatures, suggesting that losses in the field would be moderate. There was a general increase in NO 3 loss with time of heating. The reaction explaining most of the loss was thought to be:Ca ( NO 3 ) 2 + Al ( H 2 O ) 6 − Soil→ Ca − Soil − Al ( OH ) 2 ( H 2 O ) 4 + 2HNO 3 ↑ .However, there was an additional small loss of NO 3 from all soils used which could not be explained by the above reaction.