Does Biochar Influence Soil CO2 Emission Four Years After Its Application to Soil?

Biochar application into soil has potential as a means for reducing soil greenhouse gas emissions and climate mitigation strategy. In this study, we evaluated the impact of two doses of biochar (10 and 20 t.ha ) applied in 2014, combined with three fertilization levels (N0, N1, N2) on carbon dioxide (CO ) in field conditions during the growing season (April – October) in 2018. The field site is located in the Nitra region of Slovakia – Malanta. The soil in the field was classified as a silt loam Haplic Luvisol. There was not found any statistically significant (