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Inhibition of Nitrification by Acetylene
Author(s) -
Walter H. M.,
Keeney D. R.,
Fillery I. R.
Publication year - 1979
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/sssaj1979.03615995004300010038x
Subject(s) - nitrification , simultaneous nitrification denitrification , nitrate , acetylene , denitrification , environmental chemistry , chemistry , environmental science , nitrogen , organic chemistry
The effect of C 2 H 2 on nitrification in soils was determined to evaluate the use of C 2 H 2 in field and laboratory denitrification studies. The presence of as little as 0.1% (vol/vol) C 2 H 2 completely inhibited nitrification. The effect of C 2 H 2 was reversible, but an 8‐ to 10‐day period was required before nitrification returned to the rate in the control. The results suggest that the C 2 H 2 approach must be limited to those experiments in which either only nitrate fertilizers are used or where nitrification is assumed complete before denitrification commences.