تلخیص
A laboratory incubation experiment was conducted to study the effect of low and normal levels of CO2 in the incubation vessels on the process of nitrification. The soil samples were incubated for 5 days under conditions of i) 0, 0.1 and 0.2% wheat straw added to the soil and ii) without or with the arrangements to trap headspace CO2 in sodium hydroxide solution. Soil samples analyzed for NH4 and NO3+NO2-N after 1, 3 and 5 days of incubation showed a significant reduction in the rate of nitrification at decreased level of CO2 in the soil and headspace atmosphere. Organic matter amendment in the form of wheat straw significantly enhanced the rate of nitrification especially when CO2 was trapped in sodium hydroxide solution. Implications of organic matter content of soil and its decomposition to nitrification and subsequent denitrification are discussed
Shagufta Gill,, M. Abid, , Zulfiqar Ahmad , Farooqe Azam* . (2006) Organic amendment accelerates nitrification in soil , The Journal Soil & Environment , Volume 25, Issue 1.
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