Denitrification and nitrous oxide to nitrous oxide plus dinitrogen ratios in the soil profile under three tillage systems

Nitrification and denitrification in an alpine meadow soil of the eastern Tibetan Plateau

“…Hill (1988) reported that positive relationships between denitrification and soil temperature are usually shown. Denitrification also can be enhanced by higher soil moisture content (Elmi et al, 2003). The results indicated that soil temperature and moisture were the primary factors limiting nitrification and denitrification in this alpine meadow soil.…”

The influence of tillage on N<sub>2</sub>O fluxes from an intensively managed grazed grassland in Scotland

“…However, the degree to which tillage induces a change in N 2 O emissions may be determined by several factors: the prior use of nitrogen fertilisers (Abdalla et al, 2010;Yamulki and Jarvis, 2002), soil compaction (Ball et al, 2008;Yamulki and Jarvis, 2002) and the method of tillage (Sheehy et al, 2013). Changes in the bulk density, water-filled pore space (WFPS) and oxygen availability in soils can lead to an increase or decrease in nitrification and denitrification rates depending on environmental conditions (Elmi et al, 2003;Palma et al, 1997).…”

Tillage and Fertilizer Management Effects on Soil-Atmospheric Exchanges of Methane and Nitrous Oxide in a Corn Production System

“…The vials containing the soil gas samples were put into Ziploc bags and taken to the laboratory for greenhouse gas analyses. The gas samples were analyzed using a Varian CP-3800 gas chromatograph (Varian Inc, Palo Alto, CA) equipped with a 65 Ni electron capture detector (ECD) and a flame ion detector (FID) for N 2 O and CH 4 concentration measurements, respectively. 4 and N 2 O were calculated using the following equation by Hutchinson and Livingston [25]:…”