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Soil N2O emissions were monitored throughout a 3-year crop rotation including maize, fennel and a ryegrass-clover sward, at Borgo Cioffi NitroEurope site. N2O emission rates were highly variable in time and space and controlled by soil nitrogen and soil water content. The N2O effluxes were low for most of the monitored period. The highest N2O emissions were recorded throughout the 2007 maize cropping season, ranged form 15.2 to 196.2 μg m−2 h−1 whereas the lowest ones ranged form −5 to 10 μg m−2 h−1 during the 2007–2008 ryegrass-clover winter crop. For the maize crops, N2O peaks were detected after fertilization but with a delay of some weeks from applications, probably due to the presence of DMPP nitrification inhibitor in the applied fertilizer. A properly designed ANOVA model was developed to explain the influence of the main chemical-physical factors. This model also allowed the …
Springer Netherlands
Publication date: 
1 Jun 2011

Silvia Ranucci, Teresa Bertolini, Luca Vitale, Paul Di Tommasi, Lucia Ottaiano, Marco Oliva, Umberto Amato, Angelo Fierro, Vincenzo Magliulo

Biblio References: 
Volume: 343 Issue: 1-2 Pages: 83-96
Plant and soil