Emissão de CO2 do solo pela aplicação de fertilizantes orgânicos e minerais em ambiente controlado

– Swine production is fundamental in Brazil and it seeks suitable use for swine slurry (SS) in agricultural areas. The objective of this study was to evaluate the effects of SS and urea application, treated or not with nitrification inhibitor (DCD) and the way of fertilizer distribution, associated or not with crop residues, on CO 2 emissions in a controlled environment. The soil used in this study was a Humic Dystrudept soil and daily and accumulated CO 2 emissions were measured. Daily CO 2 emissions increased with SS use. There was no difference considering the way the fertilizers were applied. The use of straw increased CO 2 emissions. Accumulated CO 2 emissions were higher under use of straw associated with SS.