An incubation study investigating the mechanisms that impact N2O flux from soil following biochar application

An incubation study with four contrasting soils (Vertosol, Ferrosol, Calcarosol and Tenosol) and three biochars (oil mallee [OM-], wheat chaff [W-]) and poultry litter [PL-] all produced at 550 °C) applied at 1% w/w to each of the soils was conducted (n = 4). The soils were packed in cylindrical chambers and were subjected to five cycles of four weeks of wetting and four weeks of drying. The soils received 10 atom % 15N-KNO3− in the 1st and 5th...