GASEOUS NITROGEN LOSSES FROM CROPPED AND SUMMER- FALLOWED SOILS'

摘要: A study designed to assess gaseous losses of N as N2O and N2 from soils conventional till fields seeded wheat in the Chernozemic soil region Saskatchewan, together with limited supporting laboratory investigations, has confirmed that for May-November period were vicinity 3 kg N∙ha−1 or less. In contrast, total a summer-fallowed field approximately 300% higher. Comparisons at one site made conventionally tilled zero-tilled Dark Brown wheat; twice high zero treatments. The fluxes shown be result both reductive (denitrification) oxidative (nitrification) processes generally, under conditions these experiments, occurred simultaneously. This experiment also C2H2 inhibited nitrification manner very similar N-serve, well-known inhibitor.