N2O, NH3 and CO2 fluxes after residue addition

Nitrous Oxide, Ammonia and carbon dioxide fluxes, along with soil mineral nitrogen (N) dynamics, from N-rich red clover residue subjected to three different distributions in the soil—surface, layered, and mixed—across three contrasting agricultural soils (sandy loam (SLU), calcareous (GEXER), and silty loam (GICOS)). The incubations were performed under controlled laboratory conditions for 50 days at 15°C, with a water-filled pore space of 60%, and with nitrate (NO3-) addition. Gas fluxes were measured continuously while soil ammonium (NH₄⁺) and NO₃⁻ contents were monitored periodically.